Crypto blockchain companies

You really need to zoom out and look at the bigger picture:

Bitcoin as a long term hold has only ever made investors money and will continue to do so. The fundamentals keep improving, institutions are buying, family offices, billionaires etc. No one is saying put your portfolio on it, but it is prudent to allocate 1 to 5% of your portfolio to this alternative, emerging asset class that is still only a fraction of Goldโ€™s market cap. Think about that.