Nobody really knows of course. The great thing is that we have a marketplace where everyone can put their investment theses to the test.
If someone really believes we are entering a brand new world for electric vehicles and marijuana, and that valuations of those stocks look fine today, then you should be able to make a ton of money buying into TSLA, NIO, PLUG, FCEL, BLDP, and HMMJ today. You'll be rich!
My thesis is that there's currently a broad-reaching bubble mania fuelled by extreme stimulus, which is leading to excessive greed and risk taking across a broad range of things. I think that recent movements in HMMJ, EV stocks and BTC are tied to this mania. They could of course continue for months or years. Because I believe it's a mania, I am firmly sticking to my existing, more broadly diversified portfolio (stock indexes, diversified stock picks, bonds, GICs, gold) without buying into any of the current hypes. I believe that this will give better long term results with less volatility.