Philosophy
Free Will Versus Determinism Debate
Quick fact
Neuroscientific experiments, like Libet's famous 1983 study, have shown that brain activity indicating a decision can occur up to half a second before a person becomes consciously aware of choosing.
Why this is interesting
You feel like you chose to read this sentence, but what if that feeling is an illusion and every 'choice' you've ever made was inevitable from the start?