That's impossible. That phrase, how many times have we heard that. How many times have we thought that.Sometimes it is said to discourage our limits. Other times they just remind us of these limits. But let me ask you what does impossible mean.Take this example. It is impossible that in the next 5 seconds the large hall floor will collapse into the archives. See nothing happened, right.That was indeed impossible. I'm sorry for being pessimistic, but this is a very superficial definition of what impossible a ...