Bitcoin: 4.7% believed to be in the hands of a single person, another 3.1% in the hands of four addresses. Deflatory so no incentive to use it to make transactions. Value depends on the network effect (i.e. a pyramid scheme). Small transactions now too expensive to be realistic. 24% of the supply was created in the first year, 35% over two years. Movement of funds takes too long to be useful. Those who got in early are guaranteed to be richer than those who got in late without having made any effort...
Crypto would be great as a replacement of the stockmarket but it's fighting to be cash instead and it's doing a bad job of it because it's cash as envisioned by tech bros, not actual economists.