10 000 hours of focused deliberate practice. (at least this is more evidence based <a href="http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.169.9712&rep=rep1&type=pdf." rel="nofollow">http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.169...</a>) rather than all these BS pseudo scientific blabla (no evidence) "advice" blog posts using mathematic formula.
>The luck variable represents everything outside of your control.<p>If we understand <i>luck</i> as being in the right place at the right time, the right attitude can transform the wrong place (a frustrating obstacle) into the right place (a challenge worth taking on).
Success doesn't -require- luck. It can help, but it's not required.<p>Here's the formula for success: Take care of the customer. Charge them for it. Repeat.