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Derek has now found a way to recover the password with least action on this channel

Forgot this channel exists

Looking forward to the laser demo without stray light.

My Good Sir explored all possible passwords and hit the jackpot with this channel.

15:00 I would run it, not in a vacuum, but in a smoke filled air so I can see the other path of the laser. you would probably need a more powerful laser.

Although my daily profession is in engineering, my background is physics.

I'm glad I didn't remove this channel off my list. Now, only if I knew whether 2veritasium will also be resurrected...

Welcome back everyone

21:10 The light beam is stronger in the intended direction for lasers but it still scatters.

He quantum fouriered his password into existence

13:40 this is something I studied in college and wrote my senior thesis on the philosophy of physics about. On the definition of determinism used most often for questions about metaphysics, many worlds is not deterministic. The set of all worlds is deterministic, but for any world in which we may ask the question, there are other possible worlds in which things were different and there is no single true answer for questions about the future. That is what you need for most metaphysics questions about determinism. There are other senses of the term that ARE true that may be relevant to other questions though.