What is significant why it has to be in 2020?
Even in the past years that are still potential why we should be investing in crypto, I think if we are talking about 2020, we should think that it's good to invest because bitcoin has dump and the economy is down, hence this situation gives us an opportunity to accumulate crypto at its dip.
Agree it doesn't even need to be in 2020 if you are going to calculate your profit in you invest in the past year it would might even be a greater profit than investing here at 2020.
Also the dump this dump in bitcoin and in other cryptocurrency might be a good investment here in 2020, but still the year you are investing don't really matter at this times as long as the cryptocurrency have its high demand.