Where's your "Google"? Where's your "YouTube"? Where's your killer app? Everything you've listed is just different ways to throw away cryptocurrency. The average Joe is going to look at that list, chuckle, and go back to browsing Twitter on their iPhone. There's no main attraction here.
It's basically as if there were 300 new social media networks all popping up within 1 year, and 99% of them were clones of an open-source social media github, with a few minor alterations and a ton of marketing fluff, with perhaps 2-3 social media networks (Facebook, Instagram, Reddit) commanding 90% of the market.
There's just no utility behind all these coins. Hell, there aren't even any significant amount of bitcoin users, let alone Ethereum or Ripple, or any of the ridiculous coins. They're all presenting themselves as interesting for their utility, but are valued as an extremely short-term store of value play. It just can't last.
Lastly, note that there's only 3 cryptos that have a market cap of at least 10% of that of Bitcoin, and one is Bitcoin Cash so it doesn't count. The other are Ripple and Ethereum. Ripple has proof of stake (i.e., no mining is necessary) and Ethereum is expected to go proof of stake in the next hard fork, likely this year.
Just to put that into perspective. Nvidia's revenues are about $7b a year, AMD about 4 billion, let's say together 12b. They command pretty much 100% of the discrete GPU market, with Intel being the major integrated market player that is irrelevant in this context. Then look at https://digiconomist.net/ethereum-energy-consumption for an idea about mining revenues. It's about $14b a year, and electricity costs estimate the after-electricity profits at about $12b a year. Now you'd expect that a miner who can make $12 by turning on a device (with its electricity already paid for), is willing to pay anywhere between $0 and $12, and that with enough competition, they'll spend close to $12.
That gives you a rough idea about how significant Ethereum is as a player, with Bitcoin running on Asics and Ripple already at Proof of Stake, and most other coins being quite insignificant (and also a combination of Proof of Stake or Asics based like Litecoin, anyway).
So in short: I think cryptos will crash and even if a lot of them remain, I argue a lot of this price pressure is due to the few big coins of which only ethereum has viable GPU mining and that'll end in 2018.
Alchemix, Axie Infinity, Balancer, Aave, Pool Together, DyDx, Sorare.
Hundreds more too, I list them in most of these threads and yet every time, same question. The amount of people who confidently proclaim crypto does nothing useful without actually looking into the cool things that are happening is getting old.
Cryptocurrencies on the other hand don’t seem to be doing all thar well. Their hype-phase is definitely over and not many actually useful use cases remained.
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