10 BTC will not make him smart enough, you should think it over seriously.
Motto: Learn from other peoples mistakes, and try not to repeat them yourself!One would hope that the loss of 10BTC will improve anyone's level of investment awareness...
or at least make them think hard before investing again!
Maybe try this;- Assume every new coin is a SCAM, and start again, adjusting your strategy until you make some money - small amounts in the first instance!
Investment is a gamble, no matter which way you look at it! Real Life money, or Crypto..
Can you really afford to lose the amount you are investing?...if so, then play away...if not, then stay away!
