It is funny that you cited Dr. Michael Burry. If he was investing and trading in the cryptosphere he would be short on a lot of altcoins. With the speed and quantity of the creation of ICO's, platforms and altcoin blockchains it would be easy for a wise trader such as him to see thru it all and view all this as one giant ponzi scheme and casino hybrid. Trading cryptocoins is all a zero sum game.
By the way how is Ardor and NXT doing?
Michael Burry, as mentioned in my OP, did thorough analyses of his stocks making big spreadsheets comparing all kind of metrics.
If you would do the same for cryptos it would mean you keep track of all kind of important parameters, such as amount of transactions per day, amount of users, ratio of spenders vs savers, amount of merchants, unique utility if any, inflation rate, growth history of all these parameters etc. and compare this to it's value to judge whether it is relatively cheap or not.
I am too lazy for such an endeavor, hence my relative poor performance compared to a man like him.
I'm not sure what he thinks of Bitcoin and altcoins, I have not found any information.
I think he would like the growth rate in amount of transactions that can be seen in Bitcoin but would likely also notice the lack of growth in transactions in most altcoins!
https://bitinfocharts.com/comparison/transactions-btc-eth-ltc-dash-doge-ppc-nmc-blk.html#logOn the other hand, some quotes of him that can be readily applied to crypto as well, especially to Altcoins vs Bitcoin, NXT/Ardor included

"Information is not perfect. Volatility does not define risk. Markets are not efficient. The individual is adaptable."
“Volatility does not determine risk. Volatility is on sale because 99% of the institutions out there are doing their best to avoid it.”
"I will always choose the dollar bill carrying a wildly fluctuating discount rather than the dollar bill selling for a quite stable premium"
"Investing in speculative and overpriced assets simply to diversify against an array of external shocks is simply irrational given the odds."