Collapsing the wave function to a precise point takes significant energy.

Each incremental unit of time invested to collapse a wave function gives you diminishing returns; an asymptote.

Once collapsed, you reduce uncertainty, but also lock in details… if it turns out you collapsed it prematurely (e.g. you now realize there are specific environmental constraints that the solution doesn't meet), you might have locked yourself into a non-viable dead end.

The matrix of interlocking components set mutual constraints for each other.

Especially when roughing in a new system, it's important to not collapse the wave function of any particular piece before any others, lest you back yourself into a corner.

At each point, collapse the wave function of the most constraining item just a bit.

Continue until the whole system is tightened / hardened to a viable product.

A breadth-first approach, not depth-first.