Just finished watching it. Loved it. Completely basic, and yet completely sound, and pretty much exhaustive.
Didn't touch on crypto, other than in passing. Which makes sense, actually!
My 2c, in tying that together with BTC --- in context of the extensive discussion here on bonds vis-a-vis stock --- would be in pointing out the insane volatility, and link that to intrinsic worth, which of course in this case is zero. (Which last is important, very important, for any potential investor to base their investing decision on.). (To be scrupulously fair and balanced, though: Someone with a clear understanding of the risk, and who already has a well diversified portfolio, diversified already across every which risk category, might perhaps, depending, want to consider a small, as in 5℅ say, exposure to crypto, BTC, memecoins, whatever. With the clear understanding that they're buying tulips, but taking a calculated risk in order not to miss out on the upside.)
Also: off-topic, completely, but still, given the vid: Long-duration converts can offer volatility-risk averse types, like the interviewer, a workable option to share in the upside of stock. (But ...well, not to go any more off-topic, except to just say that last comes with a "but", involving risk-return mismatch. Still, given what the interviewer expressly said, at length, about his own risk preference.)