Why don't they just make their own in-house development environment? Cursor's codebase is maybe 5,000-50,000$ worth of actual code, even just $10M (compared to the $60B) could knock Cursor out of the park with a completely custom code editor, and even with a smaller budget they could fork VSCode. Maybe for the social value? I feel like a $10B advertising budget for a bespoke AI development environment is more than enough to become an actual competitor.