Sorry for maybe a very basic question on investing. I have been reading on recent news about how the AI bubble fear is somewhat alleviated by Nvidia's forecast that the next quarter is going to be strong for them (link at the bottom). I would believe if the forecast is from an independent analyst but what makes people/investors really pay attention to the forecast given by a company about how their performance is going to be superb and whatnot? What stops the company just not give a very optimistic view of their own future and forecast way above their actual understanding of their future quarter? Didn't the companies that went bankrupt (I was reading about pets .com during the dot com bubble) also had a similar forecast? Or did I misread something?
[https://www.reuters.com/world/china/ai-leader-nvidia-forecasts-fourth-quarter-revenue-above-estimates-2025-11-19/](https://www.reuters.com/world/china/ai-leader-nvidia-forecasts-fourth-quarter-revenue-above-estimates-2025-11-19/)