Manne just gave me advice.
Manne's advice . . . 'shut the fuck up you idiot'.
No, Manne's advice was quite good. Avoid theoretical pseudo-physics to build nuclear war heads and rockets for military slobs and idiots to play with. Do something real and worthwhile, e.g. mechanical sciences, incl. shipbuilding which is quite complicated stuff, welding all these steel bits together to become a hull and fit it with engines, generators, cranes, etc, which I have done. And I am not an idiot. Many people are but not me.