I do not understand BITCOIN...”
Think of it as a common stock that can’t be diluted.
Or, as a place where real world assets (ie, time, electricity, computing power) are “converted” into a very liquid (and digital) representation. Sort of like a gold ETF.
And finally, think of it - because of its absolute scarcity - as a small and partial hedge against inflation.
Hope that helps.
I do have physical silver and gold. That I understand.
I still trade stocks...mainly these days O & G..and METALS