The confidence-to-knowledge ratio strikes again! Our YouTube scholar boldly claims that mathematicians would say you can add 1 to infinity, only to get shut down with a single "no" from someone who actually understands the concept.
In reality, infinity isn't a number you can just casually add 1 to—it's a concept representing something that continues without bound. That's like saying "I'll have one ocean, plus a glass of water." The mathematician's "no" is doing some heavy lifting here, carrying the weight of several advanced math courses and countless theorems.
The internet: where 15 minutes of watching math videos transforms you into Gauss... until you meet someone who's spent more than 15 minutes studying math.