How much 'nothingness' can a person's mind handle?
An equanimous attitude could take one as far as it is possible to go.
With the mindset - I'm just going to see what happens and not commit myself to any one variable - nothing can essentially pull one down.
Choosing 1 automatically precludes 0.
Choosing 0 automatically precludes 1.
If the chance of a coin being heads or tails after one throws it were 50/50 then wouldn't the coin land on it's edge every time?