Considering the market surge of 2017 and the bearish market of 2018.
What is the implications of the 2018 bearish market on the Cryptocurrency market ?
Did the situation increased or decreased adoption rate of Cryptocurrency?
The answer to this is quite obvious from the entire market cap. An increase in adoption could reflect on the market cap but the opposite was witnessed. The long bear market which happened in 2018 caused a reduced adoption of cryptocurrency as it gave many people doubtful thoughts about the market. 2019 has good things installed for the entire crypto space
There is no reason to think so or assume anything to that tune
If we cut the crap, the market cap of a cryptocurrency (say, Bitcoin) is just its price conveyed in a different form. So what you say is basically equal to saying that an increase in adoption should show up as a price growth. That would be correct if the price was all made of real value. But if 90% of its value comes or came from speculation (and this might be a gross underestimation, especially if we look at things from an ATH perspective), then the price decrease can be extremely misleading
In other words, with lower prices we could in fact see wider adoption, which might well be the case now. Moreover, it is reasonable to expect that lower prices could strongly contribute to mass adoption, however counterintuitively it may sound, as there is less speculative overhead in the value of an asset, and thus more room for real growth. Simply put, speculation prevents adoption, but less speculation necessarily means lower prices