This movie explains exactly how interstellar travel is possible.

https://youtu.be/0Te2m_y4TXI?t=4880

Very easy to understand.
AI could make all the calculations for a spaceship and a crew to go from one place to another.

This is Physics, not >>>/x/ . Quantum leap.

>>16723636 (OP)
In english doc

>>16723655
I bet even a brainlet from /sci/ could understand OP