First they need to achieve 42 minutes sustained

Full 420 minutes.

Would be really NICE.

but 69 is lame because it merely is 3*13

I don’t care about sex jokes. 42 (or 72) OTOH are cool because both are surrounded by twin primes!!! how cool is that? (semiprime coolness is significantly smaller than twin prime coolness)

I think you’re doing it wrong

Whatever you say, Ramanujan.