Yes. In general, you should only invest in individual stocks, if you know something that the market doesn't know.

Otherwise, just buy the most boring and low cost index fund you can find.

OTOH, it's a generally a bad idea to invest in a company when the primary owner & CEO looks at the stock price and tweets "LOL". I feel it'd be a rational decision to short TSLA now except that "markets can stay irrational longer than you can stay solvent". And also I like Tesla, don't want to short it :)

Yeah I've been hearing that basically since the IPO.

Has yet to payoff.

Too much FOMO and not enough 'I'd be bonkers to' - for as long as that's the case it pays to follow the FOMO!

(Not investment advice I'm willing to follow myself! But a comment elsewhere in this submission, and a recent Levine column, have discussed that.. yeah, basically following the trend works... I suppose it shouldn't be that surprising, add more signals and act more quickly and you've reinvented a successful industry/form of professional trading.)

Probably not at that point, but if some PC media downgrades Tesla because Elon smoked marijuana on a podcast, or one of the millions of Teslas burn down after a crash (while the passengers survive), that's a great time to buy.