I should clear up a hole in my comment. I said both that mature industries don't have good returns so investors aren't investing into them, while also saying that AI profitability doesn't really matter to investors. The difference between AI companies and non-AI companies right now is that AI companies have rapidly growing valuations and pools of fixed assets.

Sure, revenues are abysmal dogshit, but all that research, data centers, gas generators, the brand imagery, government contracts are worth money. The AI companies can keep absorbing investor money by ... investing it.

Other mature industries on the other hand tend to not have much room for investing in much. I mean, they're trying (mostly by investing in AI lol) but what massive jumps could you expect in mattress sales or mattress factories?

The real point where AI stops being an attractive investment imo will not be when people magically realize AI is useless, but when the AI companies stop building shit and releasing new models. That's when investors will think there is no more room for growth.