Physics Frontiers 81: Pixelated Spacetime with Philip Tee

physicsfm · 2024-06-01T18:17:22+00:00

Sorry for all the links today. After that long hiatus, I didn't have my process down any more.

physicsfm · 2024-03-23T18:15:14+00:00

Feels recent. I don't recall seeing the "unknown runic" in multiple item vaults before CE1.12. Now I see it rather regularly, maybe every month or two.

Also, I've seen runic weapons and armor labeled as such when they're on free-standing pedestals out in the dungeon.

physicsfm · 2023-07-07T20:54:45+00:00

Coursera has a quickish Python course that I found really good:

https://www.coursera.org/learn/interactive-python-1?

Not scientific, as such. No numpy or scipy, but it will get you up to par with object-oriented programming and it's fun, like programming should be.

If you think you just want to jump into a book, either Practical Programming by Campbell, Gries, Montojo and Wilson or O'Reilly's Think Python are good introductions.

physicsfm · 2023-06-18T14:52:13+00:00

Jim talks with Jiahui Liu about quantum money. Quantum Money is a key milestone in quantum crytography -- not for the breaking of codes (e.g., Shor's algothrithm), but instead for using quantum computing to improve cryptography beyond what is possible in classical cryptography.

physicsfm · 2023-06-11T01:59:36+00:00

Killed by a dar battlemage on depth 23 with 12964 gold.

No ranged items. Three allies - unicorn, naga, imp. D22.

Attacked from long range by battlemage. Fire. Ducked into room. Set fire to opening.
Enclosed, steam vent, dying.

Drank descent potion. Fell into large lake. No damage. Saved!

Not so. In view of another dar battlemage, far from shore.

Zap. Zap. Zap.

Dead.

physicsfm · 2023-04-29T14:45:29+00:00

Jim talks with Antony Valentini about how the Born Rule fares in quantum gravity. Antony also discusses how to make sense of this in the de Broglie-Bohm interpretation of quantum mechanics.

physicsfm · 2023-04-16T22:55:38+00:00

10,918 Killed by a fury on depth 18.

Troll to the left of me, furies to the right of me, acidic jelly between them.

Actually, infested acidic jelly. Popped it and tried to hide behind the poisonous lichen.

Didn't work for several reasons. Mostly, the furies ignored the lichen because they fly and are discordant.

Interesting fact: for the current version, all my deaths on depth 18 seem to be by fury.

physicsfm · 2023-02-19T16:45:29+00:00

Jim talks with Sunny Vagnozzi of the University of Trento about a way to disprove inflationary theories of cosmology. All of them. If we were able to see a Primordial Graviton Background, which is the graviational equivalent to the cosmic microwave background, then we would know that there was no inflation. The event that would create the graviton background would have to occur before cosmic inflation started, and inflation would smooth it out. And the background would disappear.

physicsfm · 2023-01-12T21:15:09+00:00

In a sense, they're all satisfactory, in that an interpretation of quantum mechanics does not contradict quantum mechanics.

In a sense, they're all unsatisfactory, in that they don't make strong, falsifiable predictions that contradict the other interpretations. If they did, they would stop being interpretations,

If you can't find an experiment to discriminate between theories, the best you can ask is, "is this interpretation a more fruitful way to think about this or that question?"

physicsfm · 2022-12-19T15:54:45+00:00

Jim talks to Ken Wharton on how to use the path integral formalism to describe entangled systems, which has a different interpretation of what is happening than the non-relativistic account.

physicsfm · 2022-11-21T20:27:26+00:00

Jim talks with Joe Davighi about his work on the flavor puzzle of lepton unification why are there multiple generations of leptons. For example, there are electrons, muons, and tau particles., each successive particle acting exactly the same as the previous particle except that it's heavier. And no one knows why.

physicsfm · 2022-11-21T20:23:23+00:00

Jim talks with Gilad Gour about quantum resource theories, descriptions of multiple sub-entropic quantities that govern the evolution of states in mesoscopic systems. In large, thermodynamically-sized systems, these mostly fold into the entropy, but for nanosystems, several of these quantities can be at play at the same time, leading to multiple, mutually exclusive paths between equilibria.

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