I think it's hard to call it a reason. It is a tool which fits in with the philosophy of the company in terms of how to achieve it's goals, but I think it would

I think it's hard to call it a reason. It is a tool which fits in with the philosophy of the company in terms of how to achieve it's goals, but I think it would still exist if rust didn't. I would describe the goal as making a hyperscaling system that can be sold as a product, the philosophy of how to make this is an aggressive focus on integration, openness, and quality, and that rust is a language that works well with the last two of those goals.