You can still make money from mining coins, from buying and holding them, or from trading them on the financial markets.
mining coins is not in anyway risk free. Nor is it the best investment opportunity. Just because you're investing Bitcoin doesn't mean you need to invest in Bitcoin mining.
altcoin better to high profit with highrisk than bitcoin
you can see DOGECOIN
that coin is best to invest short time
i think invest is like trading if you get some profit you can sell it and wait to buy (invest) in perfect time
altcoins can give you a great return, but only a few people are lucky to achieve so. other brainless "altcoin investors" will most likely lose at least 50% of their investment.
15% is enough for me to get profit don't waiting you get 50-100 % profit that very high risk in altcoin