Quotes from K. Anders Ericsson

The reason that most people don't possess these extraordinary physical capabilities isn't because they don't have the capacity for them, but rather because they're satisfied to live in the comfortable rut of homeostasis and never do the work that is required to get out of it. They live in the world of "good enough." The same thing is true for all the mental activities we engage in,

you have to keep upping the ante: run farther, run faster, run uphill. If you don't keep pushing and pushing and pushing some more, the body will settle into homeostasis, albeit at a different level than before, and you will stop improving. This

If you wish to become significantly better at something, you can.

How much you improve is up to you.

Purposeful practice is all about putting a bunch of baby steps together to reach a longer-term goal.

This is true even for something as mundane as insurance sales. A recent study examined knowledge about multiline insurance (life, home, auto, and commercial) in 150 agents. Not surprisingly, the highly successful agents—as determined by their sales volumes—knew more about the various insurance products than the less successful agents.

When the human body is put under exceptional strain, a range of dormant genes in the DNA are expressed and extraordinary physiological processes are activated.