So it is "physically" impossible for a coin to land on heads or tails more than 50% of the time?

What is it that happens *physically* then to prevent this?

And as for mathematically; how is 51% (for example) an impossible mathematical result?

Just wondering.

It's not. however, the larger the sample space of flipping for head or tails, the closer to 50/50 the results will be. for instance, if your sample space was 10 flips, it's fairly likely that you can get heads 70% of the time, because only two of the flips would need to go against the expected result.

But if you had sample of, say 100 flips, that 70% would require 20 flips to go against the statistical probability, and thus is less likely to happen..

This goes on and on, until the probability that you'd get a heads 70% of the time is very low.

But, the poster you quoted was wrong in saying it's impossible.. because it isn't.