martin biehl
banner
36zimmer.bsky.social
martin biehl
@36zimmer.bsky.social
artificial life and artificial agency in artificial physics (maybe one day…)
Yes, that’s a great thing to try and explain if the laws of physics determine everything. But if they don’t what is there to explain? I don’t see it.
June 15, 2025 at 1:41 PM
What is the appeal of assuming that there are things that aren’t determined by physics as a starting point for any explanation? Wouldn’t assuming that everything is determined by (unknown) laws of physics and trying to explain our subjective reality from there be more interesting?
I.by
June 15, 2025 at 1:33 PM
The four phases of the glider next to each other require 4 x 5 cells horizontally if you count the border a la Randy Beer. But then you still have 4 cells left when 3 would be more symmetric. 7 cells vertically could look ok with centred glider. Maybe snapshots of a moving glider? Wrapping around?
May 5, 2025 at 7:32 AM
Agreed. I think the reason downward causation is controversial to some is just because within a causally closed dynamical system / the assumptions of reductionism it seems unlikely to exist in any meaningful way.
Outside of reductionism I think it’s bad terminology for some kind of Dennetian stance
April 15, 2025 at 12:50 PM
We don’t know the true microstate or its true dynamics. It’s just a property of the concept of microstate that it determines the full state of the universe. Maybe sounds useless but allows us to define any closed dynamical system as a toy universe and think about what causation should be within it.
April 15, 2025 at 10:11 AM
This is true e.g. if importance is measured in predictive power. But I think in the reductionist stance, by assumption, there are no constraints unless they are imposed by the microstate itself. Because there isn’t anything else than the microstate (lowest level) of the one and only true universe
April 15, 2025 at 8:24 AM
From a quick look it seems they define a weaker notion of downward causation that’s more a form of causal “compatibility”. That’s much less controversial in my opinion. Afaik the controversial version is where the macrostate indeed has causal power beyond the microstate.
April 15, 2025 at 7:53 AM
For downward causation that isn’t just a kind of stance/compression you need the current macrostate to determine something about the next microstate that the current microstate does not determine. It’s not clear that the example shows this. The microstate of our brains probably contains the rules.
April 14, 2025 at 12:34 PM
Is it known that negative probabilities are also more memory efficient than using density operators, quantum channels and measurements? Or maybe that doesn’t actually work?
April 9, 2025 at 2:13 AM
Naively I would think it is irrelevant whether it is generated. If it’s good enough it’s good enough. Maybe there should be standard way to disclose ai generated content though. This would make it clear that the author contributed prompting more than anything else. Not disclosing is like not citing.
March 19, 2025 at 6:50 AM
Since my Spotify recommendations are mostly boring I started listening to online radio. NTS radio is a good station I think. I listen to them via an app called Mixcloud. You can find the radio station there and then subscribe to its feed and then pick from different djs with genre hints. Not too bad
March 13, 2025 at 1:26 PM
No clue where this useless link came from … sorry about that.
March 13, 2025 at 7:02 AM
Don’t you need to assume the existence of a synchronisation map? For a long time it wasn’t mentioned as an assumption. Then it got mentioned, which made sense to me. Is it now gone again?
me.it
March 13, 2025 at 7:00 AM
Sadly, these methods work against any kind of institution, fascist or not…
January 30, 2025 at 5:42 AM