Life In 19x19

I can press down a switch on my keyboard in such a way that it desintegrates.

control is the key.

The two-finger mode is the result of natural evolution, with practice. Like many other skills, practice is a key. ( Ergonomic ways to hold a pen, a sword, a bat, a golf club, etc. -- no moral or legal requirements to hold a stone any particular way, but it's not unwise to study and research why the pros acquire this skill via natural evolution. )

Elegantly removing multiple stones is also quite difficult.

Bill Spight wrote: In addition, you can impress your non-go-playing friends when you take an M&M out of a bowl using your forefinger and third finger.

Once I was introducing some young children to the game. After the M&M and Mentos stage of getting acquainted, and having instructed them to not put them in their mouth, I took a 'stone' (I put a Mentos in the bowl on beforehand) and ate it.
Made a good laugh.

“Two-fingered stone placement feels distant and cold” … like eating with chopsticks looked to me when I first saw it as a child … but as soon as I learned how to use them, it felt elegant and practical. Similar for me with placing stones with two fingers … like with chopsticks. Elegant, easier to place the stone without nudging other stones away when the board is full.

AlphaGo has no fingers at all. Which doesn't prevent it from playing at a rather decent level.

Funny no one mention that by holding the stone like this you can hide as less as possible the view of the goban to your opponent which I find awesome. I thought it was the primary objective.