It is correct that you can not get quick money but this market gives decent returns long term investor as blockchain technologies have long future and technologies of coming days.
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I always prefer to invest in good project coin and it is no meter for me the is old or new because strong project coins always give good profit in the long run whether they are old or new.
As per my opinion, Stratis, waves, Tron, neo, and Siya coin are the good potential for growth and holder thus will get handsome returns in next 1 year. these all coin are in the top 50 list of coinmarketcap and big trading volume.
Margin trading or shorting is not for small traders and I never suggest to try it as this market volatility is very big and you can lose all your money in one go. It is better that you can do some trading with strict stop losses.
It is not possible to happen as bitcoin is much superior and trusted coin by investors of the crypto world rather than ripple and highest part of total market cap hold by bitcoin and ripple is nowhere near bitcoin in any field.