You're going to get off the hook for plagiarism because you say you read it in an article and you're not trying to pass it off as your own, but next time you'd better put the link to the article. I'll put it for you.
When is the Best Time to Buy Bitcoin
About the article, I see that there is some bullshit in it to be honest with you, as other fellows have pointed out:
About the rest, it may make some sense and it seems to me that they want to draw some parallel with the stock market, but I wouldn't go by any of that to buy, and I don't think it's going to make that much difference even if they're right.