I think that this twitter poster does not know "maf":
0.001% is 1/100000 of value.
1/100000 of about 800 bil is 8 million.
I am 100% sure that more than 8 mil was deposited into ETFs.
In fact, it's more like 80-100X of 8 million.
Correct. The correct value is 0.1%, and that is the daily trade value, not what is held, which is probably higher.
The total gold ETF market cap is 1.7% of all gold.
I'd say BTC has done well getting 5+% of that share within a week.