10.000 Hours | web.forret.com

10.000 hours of practice

Parameters

How much time have you spent/will you spend doing something?

Examples:

Intensive music study: 3 hrs/day, every day, year round
Hacker/gamer: 10 hrs/day, every day, year round
Tango addict: 4 x 4.5 hrs/week, year round
Beatles in Hamburg ('60-'64) (via)

The number of hours spent

What you actually do
Hours per day	45,00
Hours per week	180,00
Hours per month	720
Hours per year	9.360
Total hours	102.960
What you should do to get to 10.000 hours? (provided the other numbers stay the same)
Hours per day	4,37
Days per week	0,39
Weeks per year	5,05
Number of years	1,07

Background

"This idea - that excellence at a complex task requires a critical, minimum level of practice - surfaces again and again in studies of expertise. In fact, researchers have settled on what they believe is a magic number for true expertise: 10,000 hours."
Malcolm Gladwell, "Outliers"