Thanks for visit :)
I agree, I think it's very difficult to pick the winners who will stay standing in 5 years. However, I'm quite certain blockchain and digitial assets are here to stay. Therefore buying a variety of these assets to spread the risk around is the way to go.
If the market goes to $500B in the next few years, I think my index would increase but an equal amount. It's much better than pulling your hair out every time a favourite of yours has a dip :)