In Physics there is no logical reason why time has only one direction. But it obviously has.

I Quantum physics time can have bothe directions - the laws of thermodynamics are no longer valid.

Can it be that this is a result of the increasingly shrinking propability of moving qubits with a growing number of them?

I mean, in quantum dynamics, everything is different to normal physics ...

But what if you look to all these phenomenae as a large pile of quantum effects happening at the same time - it seems to be highly unlikely with a growing number of qubits to let it move highly coordinated ...

which means it is more and more unlikely that all moving "heat" is meeting in the oven instead of expiriencing the free open space ... in the complete opposit to the very small scale of quantum physics where it is quite likely that qubits move back and forth ...