Should I Invest In Downfall Crypto market

[ronnis.gomes]

If you want high profits and are a short-term investor, it is very risky to invest at this time that the market is in a strong downward trend

[Alf Brur]

Of course yes. Market is evolving like sea waves.  If you look at last years' graphs you will see these "waves" and reading last years' reviews you will find the same fears, doubts and panic.  But  prices grew in the end.
Eventually crypto-capitalization in 2018 will increase because more and more people and organisations are getting involved.
Be optimistic.

https://bitcointalk.org/index.php?topic=2721724