“Will this dashboard break when more than 5 people refresh it at once?”
The ability of a system to handle growth effectively. The excuse for over-engineering everything, even when it’s unnecessary. Usually means someone is solving problems that won’t exist for another five years while ignoring the ones that exist today. The more scalable something is, the less likely it actually works.
"We built this with scalability in mind, but yeah, it crashed with five users."