What is the best time to buy Bitcoin?

In this video I present historic Bitcoin price data and the Stock to flow model as a potential tool to predict its future value. Two investment techniques are presented: 1) Dollar-cost averaging and 2) the single trade investment attempting to guess the local top. I detail the risks of the second technique. The target audience of this video consists of people who have never invested in Bitcoin, but are wandering if it is a good investment opportunity, or are not sure if they have to wait for a better time to buy.