When effort and systems stop being the same thing
At small scale, effort and systems look identical. The moment they stop looking identical is the moment you should have built the system one project ago.
Two people start the same week. Both ship a feature on Friday. One spent forty hours typing. The other spent six hours on a checklist that the next four features will reuse.
Week one, indistinguishable. Week six, not close.
The inflection is not scale. It is the second time.
The first time you do something, effort and a system look the same. Both get it done and the system costs more up front. The second time, a system would already have paid for itself. By the fourth time, effort is losing badly and does not know it yet.
The test is not "is this big enough to systematise?" It is: have I done this before, or will I do it again?
A plan is not a document
A real plan is the three decisions you make once so you do not remake them every Monday:
- Who is the user.
- What does done look like.
- What is the rollback.
Make those three once per piece of work and you have a system. Skip them and every Monday is week one again.
Key takeaway
Effort adds. Systems multiply. The moment you do something a second time is the moment the system would already have paid for itself.