So far, I realized that I won’t fly away from the centre of Unity3D father than 16 kilometres. Some tricks, like “floating origin” could allow to break that limit somehow.
But the question arisen in another plane:
Time.time is float too!
What is maximal time the float can store with the game still running smoothly without loosing physics precision?
I tried to test float for 16777216 value, but Unity3d behaves a little strange with values higher than 100000.