Quoting for reference:
That meeting took place June 2020, which was 3 years and 2 months after launch of Switch (March 2017). Extending from that point could simply mean not cutting it short like they did with Wii U, or it could mean not cutting their focus from Switch software short in favor of the next device like they did with Wii. I do think Nintendo will support Switch up to and even beyond its successor coming out, which would be extending its support well beyond what they normally do. Normally when a device comes out, almost everything dries up 1st party-wise for the former device, but I think they will continue to make games for Switch 1 for a year or two after Switch 2 comes out (that also come out on Switch 2). So yeah, I fully expect Switch to have support extended beyond 2023 (which would be their normal end up, if not sooner in 2022), but I also expect Switch 2 to be out in 2023 and also have that software in addition to exclusives that are too taxing to run on Switch 1.
I heartily disagree with your interpretation. The brass tacks of it is that when asked about their plans for a new system their response was 'momentum for the console is increasing in its fourth year on the market' and 'we want to extend its life cycle'. This doesn't really fit with just 'not cutting short' which would generate a response more like 'Switch will have a regular life cycle' since its not like the WiiU's life cycle was normal. And continuing to support a system for a year or two once the successor launches is also pretty normal and not really an 'extension of its life cycle'. The 3DS wasn't discontinued until 2020 for Pete's sake.
But we could go round and round arguing. I'm confident it will release after 2023, if you're confident it will release that year or earlier let's bet on it. You can name the stakes, maybe sig or avatar control, whatever you want.
-The not cutting short is one interpretation I put forth, not the only one.
-Nintendo does not historically support their systems after they are replaced. They will release a handful more of first party games after their successor comes out, and those games are typically lower budget games or ones reusing assets/engines already developed. They are cheap, done by smaller teams, while the big teams focus on making exclusives for the newer device. So, when I read "extend" I'm thinking it is possible they will continue to make AAA games for Switch (that also release on Switch 2 in a forward compatible, rather than backwards compatible, kind of thinking) in great abundance for the first year or two of Switch 2's life. That would be out of character for them as they don't support legacy devices like that historically.
-Discontinuation date of a device has nothing to do with support. The 3ds had few games, especially from Nintendo, after its release compared to what it was getting before the Switch came out.
-Sure, let's bet. Where do your loyalties reside in the gaming world? For me, I'm a huge Paper Mario fan man. If we want to make this hurt you can make me have a avatar that troll me as a Paper Mario fan. What would troll you if you lose?
Also, let's get more specific:
Switch 2 only, no additional reiterations of Switch 1 hardware will count. Also, Switch 2 will, I'm sure, not be its name, so regardless of what it is called it counts if it meets the requirement.
Are we arguing fiscal year or calendar year? I predict Switch 2 will launch calendar year 2023. I suppose fiscal year would be safer bet because it would give me until what, March I think of 2024? Still, I'm feeling frisky, I'll stick with calendar year.