Dennis Hackethal’s Blog

My blog about philosophy, coding, and anything else that interests me.

Tweets

An archive of my tweets and retweets through . They may be formatted slightly differently than on Twitter. API access has since gotten prohibitively expensive – I don't know whether or when I'll be able to update this archive.

But in case I will, you can subscribe via RSS – without a Twitter account. Rationale

@michaelshermer

I don’t disagree though that we should always try to falsify theories and demand good corroborating evidence, the absence of which leaves a theory vacuous.

@dchackethal · · Show · Open on Twitter

@michaelshermer

I’d agree here with @jeffreyketland’s remark. Also I’d argue that science begins with problems and the quest for good explanations.

@dchackethal · · Show · Open on Twitter

@MacLovin87 @michaelshermer

Eg Newtonian physics is still very useful and explains many things in certain contexts where relativity would be overkill to use, even though relativity is of course the better explanation. 2/2

@dchackethal · · Show · Open on Twitter

@MacLovin87 @michaelshermer

I haven’t read Lakatos, but they may indeed uphold even a falsified theory if it has good explanatory power. ½

@dchackethal · · Show · Open on Twitter

@mitchellichtman

Yeah that makes no sense.

@dchackethal · · Show · Open on Twitter

@dchackethal · · Show · Open on Twitter

@michaelshermer

I like the emphasis on conjectures and refutations. Yet sometimes in interviews you say that we should consider something false until proven true. How do you reconcile these two approaches? (The difference being that conjectures in the Popperian sense can never be proven true.)

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

Are you working on a new book? Please say yes. :)

@dchackethal · · Show · Open on Twitter

@cloroussy @DavidDeutschOxf @Quillette

Great article, thanks for sharing!

@dchackethal · · Show · Open on Twitter

RT @royalsociety:
Robert Boyle FRS was born #onthisday in 1627. A founding member of the Society, he laid the foundations of #chemistry and…

@dchackethal · · Show · Open on Twitter

RT @ToKTeacher:
Some excerpts of “Artificial Creativity” (Chapter 7 of “The Beginning of Infinity”) by @DavidDeutschOxf with some remarks h…

@dchackethal · · Show · Open on Twitter

@techreview

Except it isn’t here yet at all. Hyperbolic statements like these impede research. aeon.co/essays/how-clo…

@dchackethal · · Show · Open on Twitter

@JarvisDupont

There’s also no difference between the sexes, and the sooner men realize this the better. ;-)

@dchackethal · · Show · Open on Twitter

@reasonisfun

Yes, I’ve been practicing “getting it over with” because of the same reasons. It’s had a very positive impact on my life even when I do it just with small things such as “do the dishes” or “I’m already lying in bed but should brush my teeth now before I get more tired”.

@dchackethal · · Show · Open on Twitter

@Hugoisms

Me, too!

@dchackethal · · Show · Open on Twitter

RT @NatGeo:
“Since [Long-tongued bats] are active in complete darkness, photography is a challenge,” writes photographer Sigal Cohen, who g…

@dchackethal · · Show · Open on Twitter

RT @Crit_Rat:
The world has never been more free from suffering than it is now, and if we want to, we can gradually expunge all the remaini…

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
I was a member of an audience of schoolchildren to whom he said this in 1971.

I think few of us believed it then. But…

@dchackethal · · Show · Open on Twitter

@joerogan

You might enjoy David Deutsch’s “The Beginning of Infinity” about how special humans are. I’d love to see him on your show.

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
Sustainability is unsustainable medium.com/@jrleahenry/su…

@dchackethal · · Show · Open on Twitter

@wuweiwave @reasonisfun

“[Euclid] put into his book only those problems that he could solve. And this, in a certain sense, was a crime.”

I LOVE that :)

@dchackethal · · Show · Open on Twitter

@wuweiwave @reasonisfun

Great, thank you!

@dchackethal · · Show · Open on Twitter

@reasonisfun

That link does not work for me. :(

@dchackethal · · Show · Open on Twitter

@mattguttmanorg @DavidDeutschOxf

Hehe well said :)

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

So would you say machine learning is orthogonal to AGI? Or does it contribute in some way?

@dchackethal · · Show · Open on Twitter

@mattguttmanorg @DavidDeutschOxf

I don’t think that’s true. @DavidDeutschOxf provides a good explanation of why behaviorism is not a good epistemic frame. See aeon.co/essays/how-clo… Don’t mean to put words in his mouth though if I’m wrong in this particular context!

@dchackethal · · Show · Open on Twitter

@NatGeo

Who else knew the name only from the Matrix?

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

5/5 And each time this is done through conjecture and criticism. And then the cycle continues. Does this not seem Popperian? If it is, it seems to me we have made at least some headway in trying to code up AGI, but we’d need to do it for more than just mathematical problems.

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

4/5 In this example, the first problem is “We don’t have an explanation for how the planets move”, to which the conjectured explanation is Kepler’s laws. The second problem is the observation that they’re not accurate enough, and so the laws are improved, etc.

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

3/5 Then, if there is a problematic observation (problematic = it cannot be derived from Kepler’s laws, such as a planetary position that does not fit the model), then the symbolic regression runs again given the problem, and it may find better explanations than Kepler’s.

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

2/5 What I mean is, eg, symbolic regression can find Kepler’s laws given data about planetary positions etc. And it does so through conjecture and criticism, since it’s a genetic algorithm. I think John Koza may actually have done this for Kepler’s third law, but I’m not sure.

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

1/5 We are on the same page about science being a process of conjecture and criticism that starts with problems.

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

I recently stumbled upon the concept symbolic regressions. Seems related to Popperian epistemology and explanations. Is being a universal explainer the same as being able to construct universal symbolic regressions (as opposed to just mathematical ones)?

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

It says the video is unavailable (for me at least).

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

What’s your take on machine learning? It strikes me as induction applied to computer engineering and if I had to guess it does not bring us one step closer to general AI, but I’m curious if that’s false.

@dchackethal · · Show · Open on Twitter

@ToKTeacher @CoatOfPainter

I love that chapter in Beginning of Infinity!

@dchackethal · · Show · Open on Twitter

@dchackethal · · Show · Open on Twitter

@RJsnda @ToKTeacher @DavidDeutschOxf

In the “Logic of Scientific Discovery” chapter 1 section 2, Popper conjectures that intuition plays an important role in coming up with new explanations (creativity). He also quotes Einstein as corroborating this in his address at Planck’s 60th birthday.

@dchackethal · · Show · Open on Twitter

@Clorwall @DavidDeutschOxf

Yes I loved that one! Perhaps in that same vein, “adapted information” is another one?

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
That link doesn’t seem to work for some people. This one works: stitcher.com/podcast/the-te… twitter.com/TEDchris/statu…

@dchackethal · · Show · Open on Twitter

RT @jmsbutcher:
REPLICATING MEMES was the original genetic purpose of our ability to create knowledge, explain the world, and basically eve…

@dchackethal · · Show · Open on Twitter

@Hugoisms

I loved that book!

@dchackethal · · Show · Open on Twitter

@DrSidMukherjee

Instead, he describes the process of conjecture and criticism by which theories can be dismissed. Surviving theories are nonetheless unlikely to be true. That likelihood does not improve with more failed tests. (See Logic of Scientific Discovery, Popper, 1934) 2/2

@dchackethal · · Show · Open on Twitter

@DrSidMukherjee

Loved your book “The Emperor of All Maladies” - just one minor suggestion for improvement. Popper does not describe the process by which scientists “verify” theories. And theories do not gain credibility or robustness when attempts to falsify them fail. ½

@dchackethal · · Show · Open on Twitter

Excellent article about what’s standing between us and AI: aeon.co/essays/how-clo…

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

It is my understanding that to apply knowledge, one has to have knowledge that said knowledge exists in one’s mind. But one has to have knowledge of that second knowledge too, etc. An infinite regress?

@dchackethal · · Show · Open on Twitter

RT @elonmusk:
@SamHarrisOrg @SpaceX

We’re doing ok for a bunch of monkeys. Humanity rocks!

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

Interesting, just the other day I started familiarizing myself with Hannah Arendt and her concept of the “banality of evil”. Can you elaborate where you find fault with it?

@dchackethal · · Show · Open on Twitter

RT @SpaceX:
Liftoff! https://t.co/2ypESsi1sF

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
Interesting, if so, that would seem to violate the principle of interoperability of information, as proposed in constr…

@dchackethal · · Show · Open on Twitter

RT @elonmusk:
https://t.co/nhB3gd0Gm6

@dchackethal · · Show · Open on Twitter

RT @SpaceX:
Liftoff! https://t.co/ItZOmXBagL

@dchackethal · · Show · Open on Twitter

RT @cardboardisaac:
Fantastic list! And nearly all of them seem to have been well accomplished. twitter.com/royalsociety/s…

@dchackethal · · Show · Open on Twitter

RT @MarsCuriosity:
I’m back! Did you miss me? This selfie is part of a fresh batch of images, direct from #Mars. Check out all my raw image…

@dchackethal · · Show · Open on Twitter

A great example of what can happen when you look for confirmation, not refutation: youtu.be/bozH0O_cVhY

@dchackethal · · Show · Open on Twitter

Unfortunately no subtitles, but brilliant nonetheless. youtu.be/1467dwUh5Nw

@dchackethal · · Show · Open on Twitter

RT @ClickHole:
This Plus-Size Model Was Inspiring. But Then She Lost 100 Pounds, Which Was… Also Inspiring? Even Though She Was Already Per…

@dchackethal · · Show · Open on Twitter

RT @MarsCuriosity:
Meanwhile, back on Mars… I’m checking out these stick-like figures. Each is about a quarter-inch long. Maybe they’re c…

@dchackethal · · Show · Open on Twitter

RT @ClickHole:
Awesome: When A Little Girl Told Neil DeGrasse Tyson She Wanted To Live On Jupiter, He Completely Shut Her Down https://t.co…

@dchackethal · · Show · Open on Twitter

RT @ClickHole:
Embarrassing: The U.S. Is Ranked 182nd In The World Alphabetically clckhl.co/uCQALuX https://t.co/9Jk8uBErFh

@dchackethal · · Show · Open on Twitter

RT @ClickHole:
Awesome: When This 8-Year-Old Girl Told J.K. Rowling That She Liked ‘Harry Potter,’ The Author Said ‘Yeah, No Shit’ https://…

@dchackethal · · Show · Open on Twitter

@dchackethal · · Show · Open on Twitter

RT @ClickHole:
‘My Fans Will Pony Up For Whatever Worthless Garbage I Dangle In Front Of Their Vacant Mule Eyes’: 5 Questions With Gwyneth…

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
Frequent use of hyperbolic or impressionistic language in contexts where accuracy is appropriate is a harmful part of…

@dchackethal · · Show · Open on Twitter

Of course, not everything is knowable (see incompleteness), but it just occurred to me that the answer to the question “Is everything knowable?” must itself be knowable. If unknowable, it immediately evaluates to “no”.

@dchackethal · · Show · Open on Twitter

@elonmusk @paulkrugman

Musk is right. Here in South Bay traffic has become so bad due to lack of decent public transit, I’d rather wait for the results of an important blood test than be stuck in traffic.

@dchackethal · · Show · Open on Twitter

RT @ChristopherNie:
@kimbal @SpaceX @elonmusk

Is this first stage purging? Have never seen smoke rings during a launch https://t.co/qYkH1sv…

@dchackethal · · Show · Open on Twitter

RT @ChristopherNie:
@kimbal @SpaceX @elonmusk

From the beach https://t.co/yzGvWam4bI

@dchackethal · · Show · Open on Twitter

RT @alias_amanda:
Here’s the video. #spacex #IridiumNEXT https://t.co/mnVKrPjCcB

@dchackethal · · Show · Open on Twitter

RT @michaelshermer:
Tonight my wife drug me out of the shower dripping wet to see “there’s something in the sky—it’s unbelievable!” Me: “Th…

@dchackethal · · Show · Open on Twitter

RT @elonmusk:
Nuclear alien UFO from North Korea https://t.co/GUIHpKkkp5

@dchackethal · · Show · Open on Twitter

RT @SoCalAleen:
What… in the world???? #DTLA https://t.co/gqhpwm9PJq

@dchackethal · · Show · Open on Twitter

@ClickHole

What amazing wisdom! #thankyoujesus

@dchackethal · · Show · Open on Twitter

RT @ClickHole:
This is the story of Noah’s ark. https://t.co/PoOJyAddsE

@dchackethal · · Show · Open on Twitter

RT @SpaceX:
Two years ago today, Falcon 9 delivered 11 Orbcomm satellites to low-Earth orbit followed by the first successful orbital class…

@dchackethal · · Show · Open on Twitter

RT @SpaceX:
The SpaceX team recently completed production on our 400th Merlin 1D engine—the latest iteration of SpaceX’s rocket engine that…

@dchackethal · · Show · Open on Twitter

RT @rabihalameddine:
Good morning,
Marcin Ryczek, man feeding swans https://t.co/ntAY268dbz

@dchackethal · · Show · Open on Twitter

2/2 1) We shall not abandon scientific theories without a good reason to do so (such as finding fault with it or finding a better theory). 2) The game goes on forever and the scientist who declares he/she has found the ultimate theory is automatically disqualified.

@dchackethal · · Show · Open on Twitter

½ “The Logic of Scientific Discovery” could have been more aptly translated as “The Logic of Scientific Research” imo. Not only is it a more accurate translation, but more importantly, Popper literally describes how research is a game with two basic rules:

@dchackethal · · Show · Open on Twitter

RT @michaelshermer:
For this reason alone each year—including 2017—is the best year in human history. Poverty will be extinct everywhere by…

@dchackethal · · Show · Open on Twitter

RT @Crit_Rat:
I received critical damage. https://t.co/hJ5dHmh7lK

@dchackethal · · Show · Open on Twitter

RT @reasonisfun:
People in the future will still be asking this about our time, after AI is cracked. twitter.com/ZachWeiner/sta…

@dchackethal · · Show · Open on Twitter

RT @reasonisfun:
The Crit Rat can be found in laboratories, spending its time eating cheese and being ignored when it squeaks that there's…

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

Can I interview you? So many questions about your books.

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
Not just most writers. Many scientists. Some great ones. Just. Don’t. Get it. prospectmagazine.co.uk/magazine/edwar… https://t.co/M55…

@dchackethal · · Show · Open on Twitter

RT @bgreene:
New discovery of ancient yet monstrous black hole – 800 million times the mass of the sun – raises tantalizing puzzle: How d…

@dchackethal · · Show · Open on Twitter

RT @DavidDeutschOxf:
Would be great to demote ‘dark energy’ from ‘bad explanation we seem to need’ back down to plain ‘bad explanation’.

@dchackethal · · Show · Open on Twitter

RT @bgreene:
Special Relativity tells us that nothing can travel through space faster than the speed of light, but this does not constrain…

@dchackethal · · Show · Open on Twitter

RT @bgreene:
100 years ago this week: Einstein uses general relativity to resolve a great mystery surrounding Mercury’s orbit, a triumph so…

@dchackethal · · Show · Open on Twitter

Been looking for something like this! twitter.com/bgreene/status…

@dchackethal · · Show · Open on Twitter

So @Tinder uses GET requests to send pass/like to server… CSRF anyone?

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

In “obj = {}; obj.prop = obj;”, is obj an instance of realized infinity as it can be fully expressed as a subset of itself?

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

In “All Life is Problem Solving”, Popper argues that the origin of life may be inexplicable. What do you think about that?

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

Does a classical universal computer’s inability to simulate a quantum computer make it not really universal?

@dchackethal · · Show · Open on Twitter

@DavidDeutschOxf

Conjecture: Could the reach of a living trans-universal structure determine the degree of its consciousness?

@dchackethal · · Show · Open on Twitter

RT @neiltyson:
If your belief system is not founded in an objective reality, you should not be making decisions that affect other people.

@dchackethal · · Show · Open on Twitter

Haven’t tweeted in a long time…

@dchackethal · · Show · Open on Twitter

Motivation: Build something and be passionate about it. http://t.co/lzh80eGN6J

@dchackethal · · Show · Open on Twitter

RT @StagelinkTweet:
Stagelink ist endlich live! Ab sofort könnt Ihr Euch unter stagelink.de registrieren. http://t.co/M6sWBFUR

@dchackethal · · Show · Open on Twitter

@dchackethal · · Show · Open on Twitter

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