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by ygouzerh
1318 days ago
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I don't know if it's scientific, but I like to refer as the 10,000 hours rules : to acquire a very good level, you need 5 years of work. If you are 30, at 35 you will have a very good level. So there is still time. Even if you are 70, it's always time to invest in a new skill. |
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