I have encountered others who are skeptic about this view of zero risk on bitcoin investment but to no avail has anyone been able to prove my points wrong.
Lots of replies here prove you're points to be wrong, it is up to you to acknowledge them, and I won't argue if you don't want to

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If you have to consider the future uncertainty of bitcoin, on what basis precisely are you pointing at? The volatility aspect or future price assumptions such as we speculates based on our personal analysis that we still don't get it correct of it certain date and time of when it would happen? Of of course if that is what you tend to hold upon, that is not the case here because if if investors as I suggested earlier can take absolutely control of their emotions with the uncertainty, then what else do we fear? Or do you prefer the risk on the uncertainty that bitcoin may crash in the future?
I would like us to look into this. Perhaps it is debatable just as you saide.
As stated, it is not about the price of Bitcoin but the investment itself, how a person keep his BTC as there is always risk of losing the seed phrases for some reason, or the system being hacked, emptying the wallet address. There is also the possibility of a ledger where the person keeps their BTC being corrupted, making files unrecoverable losing the BTC in it. There are lots of factors that may not go as a person intends, and that is what we call risks.