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by jonnathanson 3313 days ago
Respectfully, I think a lot of comments on this topic are missing the point of the author's advice. Whether there is or is not a bubble, and if there is, how big that bubble might get, are irrelevant here. That's not what this article is about.

First, the author assumes there is a bubble brewing. That's not his thesis; that's his background assumption. His thesis is that, assuming there is a bubble, you should do X, Y, and Z, and not do A, B, and C.

So yeah, after reading this, we could argue once again about whether there's a bubble or not. But the more interesting argument is about whether his advice is sound. Not whether his assumption is sound.

2 comments

One of his advices is:

> 2. Beware vanity metrics

Can we tell if BitCoin and other cryptocurrencies has any vanity metrics? If so, what would that be?

My uneducated guess would be how valuable the currency is in Dollars. The currency seems virtually inflated as we don't know how much of that would translate to real purchasing power. It doesn't seem that it would be possible to many people to sell it all out. Thus, who invested in it would be supposed to keep using within the coin's network, and given that a transaction takes awhile and there are not many shops accepting it, it would be hard to get some return.

In addition, BitCoin has fluctuated a lot since 2012 and there were several issues in its way, like the lead maintainer stepping out, capacity limit being reached because of block chain monopoly, Mt Gox bankruptcy etc.

Current vanity metrics seem to include "market capitalization" and amount raised during ICO. It is true that those have become signal in the current noise but it speaks about how frothy things are.

Crytocurrencies simply are hard to value because you don't know how many users they've got.

I've seen number of transactions used as a vanity metric. This leads some people to "spend and rebuy" BTC to juice that.

Number of full nodes also looks like a vanity metric.

It can also be the number of threads about bitcoin (or cryptocurrency) on Hacker news being upvoted to the top 10/20?

I was there when the last time bitcoin reached record highs. Surely the USD conversion rates play a large part when suddenly people get interested in block chain or bitcoin at all.

Other metrics can be the glut of "altcoins" with very high "genesis block" or ICO rates.

"Market cap" is the most-quoted vanity metric of the cryptocurrency market.

A more reasonable measure of the value of a cryptocurrency would be the following: if it were possible to create an infinite number of currency units, how much USD/EUR/etc. could be earned by selling everything into the market? In other words, the more reasonable metric is the sum of all (cryptocurrency) buy orders.

If we use the Bitcoin/USD market as an example, the four most liquid USD exchanges (using data from https://bitcoincharts.com) are -- in descending order -- Bitstamp, Coinbase, itBit, and Kraken.

The sum of all USD buy orders for these exchanges is $43 million (22583567.85[1], 9551529.73[2], 9310393.07[3], 1679397.01[4], respectively).

I'm not sure what this figure is for Ethereum, but my guess is that it's around 1% of that of Bitcoin -- whereas Ethereum's market cap is around 50% of Bitcoin's.

EDIT: On GDAX/Coinbase alone (https://www.gdax.com/trade/ETH-USD) it's possible to sell Ethers for over $12 million USD. So I guess I was wrong about the 1% figure. Although I believe $43MM USD for Bitcoin is an underestimate.

[1] https://bitcoincharts.com/markets/bitstampUSD_depth.html

[2] https://bitcoincharts.com/markets/coinbaseUSD_depth.html

[3] https://bitcoincharts.com/markets/itbitUSD_depth.html

[4] https://bitcoincharts.com/markets/krakenUSD_depth.html

I sometimes use the depth as an indicator - I admit. But it is so easily manipulated that its usage is very limited.