Life with a singular focus

I've taken a break from the corporate world, and after finishing my video game and some other projects.  I've finally had some time to think.  Something you don't get a chance to when life is flying at you at 100mph in a stressful job.  

When you read about success and the people who do great things with there life, you start to notice some patterns.  I'm still working on this theory, but a singular focus seems to be a common theme amongst them.

Micheal Jordans IS basketball, Bill Gates IS Microsoft, Warrent Buffet IS investing.  These people didn't have much else going on, on their way to the top.  Well, Jordan did breifly transition to baseball, but that ended poorly. 

It's really hard to truly commit yourself to one thing.  Can I be a startup founder, a musician, and engage in a full time career?  I can, but unless I foucs on one, not much is going to happen.  

For the most part I believe everybody is born with about 100 units of energy throught the day.  The full time employee is giving about 60 to their job, maybe 10 to their hobby, and the other 30 to day to day life.  A master of their craft is dedicating about 80 of those units a day to it the other 20 to life.  Some people can push maybe 120 units a day, but that can't last long and you'll burn out and have to recharge.

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*      *
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----------------       Jordan
life   basketball


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*            *     *
*     *      *     *
--------------------------       John
life  music  ideas career

How much can I expect to accomplish when I'm watered down so thin?  Furthermore, I'd love to be able to make my name syonymous with one thing.  John the musician, John the programmer, but doing so means giving up so much of my identity.  This thinking has given me a newfound respect for musicians, especially young ones who made that choice early in life to dedicate themselfs to something.  That's incredibly diffifult and scary to do. 

If we're going to really push the boundries of what we're capable of accomplishing, then we have to choose.