Likely.
I strongly suspect this is Satoshi, sharing his thoughts
https://www.slideshare.net/slideshow/duality-an-excerpt-satoshi-nakamoto/103964662
Discussion
I find it doubtful. It seems infinitely more likely that the 21 in 21 million BTC is a reference to 7+7+7 (a jackpot), not half of 42. I'm not saying Satoshi wouldn't like hitchhikers guide, I'm just saying that part explaining how he came up with the number triggers my Spidey sense 🤙
Where was this posted?