From data published by exchanges we see, for instance, that Kraken has 4 million users. It is safe to assume that half of the active users,

Cash flows to crypto-assets and blockchain startups have been increasing since 2014, surging to a peak of $8 billion in 2018. Participation

The total crypto-assets market cap has been shrinking since 2018. Yet signals from the global crypto sphere remain positive. As 2019 began,