What is the smallest infinity in the world?

Excuse me, but I'm curious about something that seems quite perplexing. Can you please explain what exactly is meant by "the smallest infinity in the world"? It's a concept that sounds intriguing but also somewhat contradictory, given that infinity, by definition, is boundless and without limits. Are we perhaps referring to a theoretical or mathematical construct within a specific context? I'd appreciate any clarification you can provide on this fascinating question.