Some traders,
or shall I say many traders ...
Hell, I don't know.
Anyway, revolutionaries know what they are doing -- don't shoot till you see the whites of their eyes.
It's best to trade stocks that can and do make money now and are continuing to run forward at a good clip than it is to invest in an infantile company like NIO which is just beginning to learn how to walk.
I like NIO but it trades at too low of a price to invest in. I like to be able to manage risk, and thereby lower risk, while trading stocks. I do that in large part by including the sale of Call options sometime rather soon (in terms of minutes to a day or more) after purchasing the stock. That sale creates income while holding the stock. That IS risk reduction at its best, as you get paid a sort of commission to buy the stock; and you can repeat that selling of Calls every week as long as you continue holding that stock.
With that method and an average market, 100%+ gains each year is not difficult to achieve. But it's difficult to do that when the stock trades at only a few dollars while the best options price spacing is a half-dollar. Finer granularity is required to make that trading method work well, and that isn't going to be the case till NIO can reliably trade at prices nearer to $10, in which case their options are spaced at 5% intervals. Using that method while NIO trades at $8 instead of $10 and higher is equivalent to accepting a little more risk but I would be tempted to do that because the better price of $10 isn't that far out of reach.