1. It's cheap to run.
2. It has clear advantages over existing technology (SMS).
3. My mom uses it. She's never going to use cursor. Whatsapp had a huge userbase in Europe. Basically everyone I know uses it.
And it was "only" ~$20 billion. Inflation can't be this high.
The value in acquisitions for investors typically comes from how much money is locked into multi-year deals. A lot of tech folks in leadership positions that I talk to are very aware that the best option in this space changes every 2 months. Right now it's Claude. Next month it might be Codex. A couple months after that it could be Gemini/Qwen/Composor/Kimi/xAI.
Locking in with Cursor where quick swapping your team between the changing options is the point is a better choice than locking in even a 1 year deal with any single option where you're still going to be paying for token cost on top of it.
While I'm not sure about this buy, Cursor does at least have revenue. WhatsApp was basically running on VC/private money (they had an extremely nominal fee, but I never had to pay it), and was sold to buy its userbase into the Facebook fold. I don't think you can compare that to a business that at least has some decent revenue.
I wish people would stop talking about just revenue. It's mostly meaningless without knowing their expenses.
Also revenue is a signal for product market fit. Is it a great one? Dunno. But for example I'd be hard pressed to sell $1billion of anything, even if I had something everyone wanted.
But I think your point about burn rate is important. How long can they have this attrition on cash before they collapse?
The cost of switching from cursor to codex or Claude code is minimal.
So what does Claude code actually have that spaceX can't imitate? Well, not much, but acquiring hot companies before your IPO is a good strategy to drive up your own valuation.