For EVERY DAY since July 2014 when there was 4 years of #bitcoin price history data, the purchasing power appreciation for holding for 4 years was at least 100%

Buy as and when you are able; hold for at least 4 years and future-you will thank you for your patience

My takeaway #1 .. (historically) it does not matter when you buy if you are prepared to hold for 4 years then your "worst case" gain is a little over 100%

My takeaway #2 .. that 19% CAGR is the baseline against which to measure alternative investments and savings tools

My takeaway #3 .. we're so freakin' early .. we don't even have a decade of price history data yet so will be interesting to look this time next decade!

For those interested in verifying for themselves, head on over to coinmetrics where they have the daily price history data for bitcoin available for community download here