Scientists who defend the quantum system often assume that physical phenomena "can" take place by coincidence without providing real and physical proof of it.

Their theory is based on probabilities. And knowing that probability is an abstract science.

Like saying "1 = 0" or "3 = 85", or "A = 66 and A = 17".
Assumptions not even based on justifiable bases mathematically.

Suppose they can make a quantum computer. They say it will have to deal with billions of states.
Such a computer will surpass the human computing speed and capacities?

I wonder what are these billions of states, you have to identify them 🙂 ???

The other flaw in this project is they tell you "You have to believe us" without proof or demonstration, and we have to believe it "can" exist !