How we can determine BTC is digital gold?BTC Thats can be determined by their attribute. Gold is valuable because it's rare and has a limited supply. This term is true for Bitcoin as well. Both can be exchangeable with essential goods and they are acceptable in our society. Gold and BTC both can be stored though they have different methods to do that. But if you compare these criteria then we can say Bitcoin is digital gold.
That’s for you all that call it gold, I don’t have that kind of time 
. I just call Bitcoin what it is – Bitcoin, and gold is simply gold and nothing more. And the second comment pointed out something else that I agree with, none of them are rare, they can easily be purchased; you can buy Bitcoin at any day and any minute you want, nothing stops you, the only thing is that the price you see it today will not be what you’re going to be buying it tomorrow because the price is volatile.Then that’s the same thing with gold, gold is not rare, you can buy it anytime you want to buy, there are lots of companies to invest and buy gold from anytime you want it.