Hey, Kelly. So, what used to be Microsoft's biggest boost in the AI race for years. It's now a source of anxiety.Feels like everyone's focusing on this RPO number. So, let me break that one down. RPO or remaining performance obligation.It's essentially backlog. Revenue that Microsoft expects to recognize in the future from contracts that are already signed. The issue is concentration.About 45% of that backlog, it's tied to OpenAI. So when OpenAI looked like a locked in exclusive growth engine, that was a fe ...