it depends. only doubling your money in a year or two is a gross understatement. To suggest putting money into something other than bitcoin mining is DUMB.

If you dont want to do research or really any work to get into crypto then fine, look into mining contracts. But i have had several coins explode just last month. Out of 30 coins i have in my portfolio exactly one has been less profitable than BTC. But i must be DUMB