[Rinzler89]

>But is it really that impressive from solving a cube that it got done in a blink of an eye?

If you look closely when the robot performs the fast rotational movements on the cube, it has near zero overshoot. It nails the position right every single time while also being insanely fast.

That's definitely impressive for marketing their servo controls especially considering that the cube is not a "speed cube" with chamfered edges on the blocks that can tolerate rotations with imprecisely aligned pieces, but a regular one that's less tolerant to that.

[brazzy]

It's just a little disconnect between the expectations of people who know nothing about cube solving, who think that finding the solution is the difficult part, vs. the reality that this is entirely a demo of how fast and precise you can make the mechanical and electrical parts. Eventually it will be a demo of how resilient against tearing themselves apart you can make them (and the cube).