In my own opinion, a $50 capital might be enough if you invest it in bitcoin because investing in bitcoin is risky, but it is profitable. As long you can manage your portfolio and make a successful trade you could earn good profit.
You must be joking. The risk -reward ratio is good with Bitcoin but with $50 there's no risk so there will also be no reward.
What can you expect? To make another 100% in a year if you're lucky? That will make you own a whopping $100 by the end of the year. Congratulations!
with 0.03btc I have done 0.1 in 3 months, and I no longer count the projects where I have invested and which I find when it climbs dry, there is more money in altcoin to do than with bitcoin himself .. example beast, I take 0.1 btc of dogecoin, I can play all day martingale roulette and seen the sum in dogecoin token I assure you that by playing that by 10 dodge in a few hours you make your $ 100 of profit ... with btc these more complicated .... then when btc and go up from $ 1000 to $ 20,000, how much do we make the other altcoin? much more than btc, just need to be interested in the right project or if it wants to remain profitable while waiting for the rise of the btc which plays martingale and any matter when the btc explodes, the dodge will also explode, so for me btc is not not the most profitable in the long run

this and my opinion