No matter how many times it's proven, a person's long-term investment gains and losses depend on the system, not on whether a particular bet was lucky.
However, there will always be people who, when your asset rises, shout 'awesome'; when it falls, shout 'foolish'.
The cruelty of this situation is that it shows that in this market, most people will never understand how to properly participate in speculation and investment, and they will never learn it.