Slow companies lose to fast companies even when the slow company is technically correct, because speed is a strategy in itself. Faster cycles produce more iterations, more iterations produce more learning, and more learning produces a better product than any single careful analysis would have built.
Why speed compounds
The team that ships ten things in a quarter learns from ten things. The team that ships one carefully planned thing learns from one. After four quarters, the gap in compounded learning is enormous, and the slow team is now defending an architecture and a roadmap built on a worse model of the market.
Where speed is not a virtue
Irreversible decisions, security-critical changes, anything with regulatory exposure, and people decisions. Speed matters most in the reversible space, which happens to be most of the day-to-day work in a product company.
How to build for speed
Smaller units of work, tighter loops, fewer approvals, more written context. Default to ship; require an explicit case for delay. Measure cycle time (idea to user) as a first-class operating metric, not just velocity. The companies that get fastest are the ones that treat speed as a discipline, not a vibe.