Community Discussions
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Veritasium path integral video is misleading
Main Post:
I really liked the video right up until the final experiment with the laser. I would like to discuss it here.
I might be incorrect but the conclusion to the experiment seems to be extremely misleading/wrong. The points on the foil come simply from „light spillage“ which arise through the imperfect hardware of the laser. As multiple people have pointed out in the comments under the video as well, we can see the laser spilling some light into the main camera (the one which record the video itself) at some point. This just proves that the dots appearing on the foil arise from the imperfect laser. There is no quantum physics involved here.
Besides that the path integral formulation describes quantum objects/systems, so trying to show it using a purely classical system in the first place seems misleading. Even if you would want to simulate a similar experiment, you should emit single photons or electrons.
What do you guys think?
Top Comment: These kinds of mistakes are why channels like 3B1B represent the gold standard when it comes to popular science communication. Veritasium attempting to speedrun years of college-level math and quantum mechanics doesn't do much to advance the viewer's understanding, and in some cases can be actively misleading. He either needs to spread out his material over multiple videos or focus on less involved topics. He simply can't have it both ways.
For those dissatisfied with Veritasium's Path Integral video, here is the real deal explanation
Main Post: For those dissatisfied with Veritasium's Path Integral video, here is the real deal explanation
Top Comment: I've heard about the path integral formulation being not well defined in some cases, i.e. infinities in QFT/QED leading to the need for renormalization. Can the path integral presented here (a limit of integrals) be made mathematically rigorous -- to a mathematician, not physicist's standards? As you can tell I'm not an expert in QFT, but I have reasonable expertise in maths if that helps pitch answers to the right level.
How to export path-traced video in twinmotion ?
Main Post: Hello everyone, I am new to twinmotion, I am trying to create an interior walkthrough, but when the video is exported it doesn't look like the rendered video it looks flat and it looks like how it is visible in the viewport. How to export a video that is path traced. Thanks in advance.
Top Comment: Hello everyone, I am new to twinmotion, I am trying to create an interior walkthrough, but when the video is exported it doesn't look like the rendered video it looks flat and it looks like how it is visible in the viewport. How to export a video that is path traced. Thanks in advance.
i made a meme video compilation about path to nowhere
Main Post: i made a meme video compilation about path to nowhere
Top Comment: got some (not) funny ideas while playing and got the idea to turn em into a video (i shouldnt have), anyways. i hope you enjoy (my horrible editing)
Main Post: Reddit
My Third Signal Video: How path signals work
Main Post: My Third Signal Video: How path signals work
Top Comment:
The path signal won't work if you have a loop arounds at the station. You have to use block signals. It works fine in your video, because your trains have an engine at either end. I have single engine trains and use loop around tracks. The path signals at the pass by track caused an error, so I had to switch to block signals.
This is the satisfactory calculator maps for my stations with description.
Error: Unsupported video type or invalid file path when using Windows 10 UWP apps
Main Post:
Hello. I use the app Unstream for Twitch by user u/travy92. As of recently, whenever I try to watch a stream, I get the error "Error: Unsupported video type or invalid file path." Switching over to a new app, zTwitch, since that is the second Twitch app to support Chat Replay, I noticed that there is the same problem: Error: Unsupported video type or invalid file path.
I tried this on my second laptop, to which I got the same error on both apps.
The kicker is that both of the same apps work PERFECTLY on my desktop. THere is no error and I am able to watch Twitch streams on my gaming desktop. Problem is I never watch Twitch streams on my gaming desktop since I'm always... well... gaming.
I did a Google search on this and no matter what search queries I get, "Windows 10 UWP unsupported video type" or anything similar to that which could result in results similar to my own, the only results I get are "IE 10 <insert error here>" "IE11 <insert error here>" People say something about a url problem with some media coding or some shit, but with UWP apps, you cannot change or replace such things.
Any advice or help?
Top Comment: Same here, I think it's a bug in 14931
Which path to become a video game writer? : gamedev
Main Post: Which path to become a video game writer? : gamedev
Twinmotion 2022 - Video - Path Tracer On : Twinmotion
Main Post: Twinmotion 2022 - Video - Path Tracer On : Twinmotion
Hello. This is my first video ever. A Path of Exile 2 review. Would love to hear some thoughts on how to improve from the POE 2 community. Thank you fellow exiles !
Main Post: Hello. This is my first video ever. A Path of Exile 2 review. Would love to hear some thoughts on how to improve from the POE 2 community. Thank you fellow exiles !
Top Comment: Set years after the original Path ... that is spreading. Path of Exile 2 is a free-to-play online multiplayer game with co-op for up to six players. ... I'm an indiedev and as a side project I interview my friends! I'm better at games than video, so please let me know what ...
Thoughts on The Matrix Path Of Neo video game?
Main Post: Thoughts on The Matrix Path Of Neo video game?
Top Comment: I loved it as a kid, but haven't played it as an adult. I imagine it's pretty janky though. I tried to play Enter the Matrix again as an adult recently and boy that game did not hold up at all.
Elon Musk put out a video of him obviously piloting an account someone else had pushed to lv96 hovers over Hand of Wisdom and Action, which drops from the hardest boss in the game and says lv 52, due for an upgrade like yeah son you upgrading from the best gloves in the game
Main Post: Elon Musk put out a video of him obviously piloting an account someone else had pushed to lv96 hovers over Hand of Wisdom and Action, which drops from the hardest boss in the game and says lv 52, due for an upgrade like yeah son you upgrading from the best gloves in the game
Top Comment: "Gamers are accusing" as if to give him any benefit of the doubt. So annoying.