What can a good physicist/mathematician do?

[MrDocat]

What can someone who mastered physics and mathematics to a great extend do, practically?

 

[chiro]

What can someone who mastered physics and mathematics to a great extend do, practically?

How long is a piece of string?

In other words, pure potential and possibility is not easy to quantify or answer in a useful manner for your question.

 

[ahsanxr]

Practically, they can do physics and mathematics.

 

[Number Nine]

They can do physics and/or mathematics.

 

[MathematicalPhysicist]

Nuclear bombs...

Oh wait a minute it has been done already, so maybe Q-bombs.