Didn't the big money entered 4 months ago when price start jumped from $980 above $2900+ as ATH? what else would you want, basically crypto started from zero to $100B market capital, my country contracted Total France oil-gas company for years with a worth equal to $4B and it was announced like they gave us the entire world on a plate, a country with more than 70M people and even though that's for extracting oil and gas to sell, but now we have literally nothing other than 120GB of data holding a value more than $40B.
I wouldn't be so sure about trillions coming in crypto, that kind of figures requires governmental insurances. capital that big shouts out for security and some guarantees, crypto lacks either of them.
I think the money come mostly from Japan because of its adoption of bitcoin. The cash flow that time was crazy. I was observing that in a day bitcoin jumps $100 until it reached and peak at around $2900. And that is one country alone. Imagine if other countries followed suit as well literally a lot of people are gonna be hundreds of even millions of dollars richer.
in order for Forex or decent stock trading markets to add bitcoin, bitcoin has to be regulated first. you can check out the Japanese news to see how that affected things. their biggest Forex exchange called click security IIRC added bitcoin when it was regulated and i'd like to believe the rally to $2900+ was affected greatly by that.
and it will happen in the future, as bitcoin becomes bigger and more used and as other countries keep regulating bitcoin like Japan did, there is no other choice for other countries which are resisting so far (like US) to do the same.
and hopefully by that day the weird stupid $100 swings in 1 day and $700 in 7 ends
However, regulations should be put to protect the money of the investors. Japan has already put a lot of positive effects on the bitcoin market. And I'm just hoping that another big financial powerhouse nation should join soon and perhaps we can see then that bitcoin added to a big forex or stock trading markets. It remains to be seen though.