There are a lot of people with VERY loud opinions one way or the other, but I personally don't see crypto going away. I have noticed larger institutional investors getting into the space recently. The USD may be seen as problematic long term because of monetary and fiscal policies driving inflation. Asset prices in general are quite high. Traditionally if you want to hedge against inflation, RE is a great choice. BUT, RE cap rates are remain compressed despite being in arguably a major recession, I worry about their sustainability long term especially when the interest rate environment changes. Stocks haven't performed as well in the last 20 years as they have historically from 1950-2000 and the valuations especially on newer companies is eye watering. IPOs are coming to market at 50B rather than 1-2B, so there is little money left to be made for the average investor unlike how it was in the past when companies like Amazon and Microsoft went public. Bond yields are non-existent. What is there left? The best performing part of my small portfolio over the last few years has been real estate, crypto and collectibles. Other than some small acquisitions in the collectibles space there really isn't anything I've been excited enough lately to allocate away from cash into. So for now I am just waiting and watching.
However, I will say that DeFi is changing the game in crypto. It used to be that Bitcoin and other Cryptos couldn't generate yield. But now there is an ecosystem of lending and staking that definitely can generate yield, @Alexander Szikla, which will make it a more attractive investment for long term allocation. If I was putting any more money into crypto (and for the record I'm not currently planning on it) it would be focused in yield producing crypto assets.