Good job on getting this one started, although you could have set the bar 10 million units lower to be a bit less bold while still aiming for the whereabouts of the title "best-selling console of all-time."
As for a spreadsheet, it looks more daunting than it really is. Setting up the framework takes one to two hours depending on how much you want to polish it, but quarterly updates for five different tabs take only around 30 minutes combined, so that's just two hours a year.
What's unique about this generation is all the uncertainty that is outside of Nintendo's control, namely the tremendous stupidity of the Trump administration that could even make us enter a global recession. Entertainment is recession-proof to a certain degree, but there's no way of knowing how the next few years will play out, especially because Trump himself has no idea what he's doing either; he's clearly winging it.
The uncertainty for us that is in Nintendo's control is the direction they will take their IPs into. Nintendo is secretive about that, so we don't know what awaits us in 2026 and beyond. There's never a guarantee that the next entry in any given series will hit it out of the park, plus there's the fact that so much about Switch 1 has set high bars for sales records, so even if Switch 2 ends up being very successful, it might not be quite successful enough to set new records.
Legend11 correctly predicted that GTA IV will outsell Super Smash Bros. Brawl. I was wrong.
