articles tagged: causality
oh quantum causality, we hardly knew ye…
# science

oh quantum causality, we hardly knew ye…

A new experiment shows that the quantum world obeys causality only begrudgingly, and sometimes, not at all...

presenting paradox-free quantum time travel?
# science

presenting paradox-free quantum time travel?

Quantum time travel experiments hint that physics creates closed time loops, meaning you can't change history.

how to exorcise laplace’s demon
# science

how to exorcise laplace’s demon

Laplace was worried this sort of thing might happen and drive mere mortals insane...

time travel showdown: past vs. future
# science

time travel showdown: past vs. future

If time travel is possible, what direction would be the easiest to visit and have the fewest limitations?

the real time machine
# science

the real time machine

Time machines may be possible, but the laws of physics will impose limits on what they'll be able to do.