Ciro Santilli @cirosantilli 35

Solving differential equations was apparently Lie's original motivation for developing Lie groups. It is therefore likely one of the most understandable ways to approach it.

It appears that Lie's goal was to understand when can a differential equation have an explicitly written solution, much like Galois theory had done for algebraic equations. Both approaches use symmetry as the key tool.

The Nobel Prize of computer software or hardware!

More like a "lifetime achievement" though, rather than the Nobel Prize, which tends to be for more specific achievements.

This is about functions that take functions as input or output.