Very cool, if true

Oh, Argerich! Yes, for a combination of power and fire she is an unbeatable pianist, and I often refer to her in my reviews as the gold standard in that department. Here's another performance of the same concerto that's even more dazzling, despite some regrettable lack of coordination between piano and orchestra, posted in lieu of another even more amazing performance of the same concerto with the same conductor that's no longer online.

And for an even purer example of Argerich burning up the wires, this tiny excerpt from the Schumann Quintet (the cellist is off-screen) has long been a favorite demo for me.