I stumbled into an overly-substantial ethereum investment due to mk and insomniasexx. You have to keep in mind, though, that the market cap of Ethereum is about to cross $50b for the first time in a couple-three years... while Apple alone has four times that in cash-on-hand. The last bull run in crypto has now made it such that any given tech company couldn't buy out the whole thing by cutting a check but it was that way for the past few years. Which means it's a really thin market, subject to flagrant manipulation.
If you take the nightmare of forex trading, multiply it by ten, then eliminate all regulations you're looking at the crypto market. The speculative froth makes it a good goddamn thing to avoid. During the crazy times I lost $12k because I got distracted by a 9 minute phone call.
But you aren't asking about that, you're asking about technologies that leverage it and how to trade on it. Again, I think you're gonna get eaten by the whales. The equities markets are now derivatives of the futures markets and the futures markets are opaque.
My play is to start a luxury brand.