In an actual Ponzi scheme yes. The AI bubble isn’t a Ponzi scheme. Infra investment ahead of revenue is fairly standard in tech and not inherently bad. However if the revenue to pay for all that infra doesn’t materialize then you have a bubble implosion. Right now while the revenue and growth numbers for AI revenue would be incredibly impressive by most standards, there’re still a drop in the bucket relative to what’s needed to stop this whole house of cards from crashing down.

You're calling the stock market a Ponzi scheme?

Most developed countries are ponzi schemes, since they all have old age benefits where new people pay old people.