It's true that some have an enormous capacity for work. I felt my capacity grew year on year for ten years straight -- simply by working with enormously ambitio

It's true that some have an enormous capacity for work. I felt my capacity grew year on year for ten years straight -- simply by working with enormously ambitious people. But it can also happen by other means. While at a megacorp, for example, I was collaborating and competing with colleagues medicated with Adderal, who had astounding focus and output. The bar is always being raised, and sometimes in ways that are barely visible. My takeaway was that it's important to identify personal limits and boundaries, and be careful how hard you compete.