Which direction requires more intelligence and talent?

Direction: Breakthrough in technology. For example, the invention of touch screen or GPS or laptop.

Direction: new theories in mathematics and physics

In intelligence, I would say math. Math is like a big, theoretical, abstract puzzle that requires a sense of logic, above all. - Intelligence in its purest form, I would say.

Breakthrough in technology is always an application of known physics knowledge. Again, physics is always one step ahead.

In art, the art lies above all in the creativity… Visions for the product and which physical properties one could use for the implementation in which way. The requirement should also bring a physicist. It was only> 100 years ago that engineering was split off from physics for a better division of labor.