En sólo 20 horas: Aprende lo que quieras de manera rápida

The idea of rapid skill acquisition is so appealing, but I wonder what led Kaufman to emphasize 20 hours specifically. Was there research or personal experience that shaped this?

I've tried some of the techniques, but I'm curious if others have successfully applied them to real-world skills and what results they saw.

Starting something new can be daunting, and I wonder if the book offers strategies for maintaining motivation during the initial tough phases.