I’ve seen the argument that because the google trend for bitcoin has fallen back to pre-mania level, all new money has quitted. This is false.
Bitcoin’s trend: https://trends.google.com/trends/explore?q=bitcoin .
Bitcoin sparked a lot of new interests last year hence the peaking trend. Some of those new interests may still be buying bitcoin now. Just because the trend has fallen to previous level doesn’t mean bitcoin has no increase in popularity.