2min 8sec clip - Paradox of Choice Explained: How Too Much Choice Hurts Decisions

5min 37sec @TEDEd clip - #Hawking's black hole paradox explained - Fabio Pacucci

text from youtube "Where does quantum information go when it enters a black hole? Investigate the theories of the black hole information paradox.

Today, one of the biggest paradoxes in the universe threatens to unravel modern science: the black hole information paradox. Every object in the universe is composed of particles with unique quantum properties and even if an object is destroyed, its quantum information is never permanently deleted. But what happens to that information when an object enters a black hole? Fabio Pacucci investigates.

Lesson by Fabio Pacucci, directed by Artrake Studio."

the #grandfather paradox - in #60seconds

found via oddee

60-second adventures in thought (combined)

via laughing squid

1) achilles & the tortoise - something finite can be divided and infinite number of times

2) the grandfather paradox - time travel backwards is impossible (if you travel back to kill your grandfather then you wouldn't exist to do so)

3) the chinese room - however well you programme a computer it doesn't really understand and so is merely simulating intelligence

4) hilbert's infinite hotel - in a hotel with infinite rooms, if an infinite number of new guests arrived they could be fitted in if all existing guests moved to a room no. double their current one

5) the twin paradox - if a twin travelled off at close to the speed of light then for them time would move more slowly than for the twin left on earth, so if they came back they'd be younger than their twin

6) schrodinger's cat - quantum mechanics says particles can be in two states at the same time