Alan Turing would be 101 and Claude Shannon 97 if they were alive today. Our field has an ageist reputation in no small part due to comments such as yours, that think that age alone is somehow an indicator of competence.

It's not a field it's a pop-culture just as Kay said (https://www.youtube.com/watch?v=FvmTSpJU-Xc).

Well, first it's financial advice, not technological advice. As other commenters have noted, BC is both a technology and a currency. Buffett is addressing the second.

Second, he runs a $300B USD financial and industrial conglomerate that he's assembled in a singular way in the span of his own lifetime. Maybe he has insights that are worth something.

Third, Kernighan is over 70. Ritchie would be, too. Knuth is 76.

I mean, I have no illusions about changing your mind, nor do I care. I just don't want anyone who is reading your comment see it go unchallenged.

He's old, so he must be out of touch. Way to make sweeping generalizations.

He's saying the same thing that Benjamin Graham would have said: Bitcoin isn't an investment, it's a speculation like art. Sure, you could make some money on it (and some have for sure), but don't delude yourself into thinking you're making a sound investment.

To be fair, he's far from your run-of-the-mill 80 year old.

That wasn't technology advice.