SLO-driven architecture treats the SLO as upstream of the design. If your SLO has never caused you to ship later, it isn't doing the work.

Every modernization arrives with a stated goal and a much larger implicit one. The modernization that fails is the one where the implicit architecture was never named.

A security pattern adopted without a threat model is a control with no clear job. The patterns aren't the problem. The application is.

Containers were sold on consistency. The bill arrived in installments: orchestration, networking, security, observability. An honest audit of what the decision bought.

Most cloud architecture reviews produce a deck that gets filed. A useful review produces decisions framed for the people who can make them.

A Dockerfile is six lines and a dozen architectural commitments. Most teams write them by copy-paste. Few read them as decisions.

The same architecture decision can be approved by one audience and rejected by another in the same quarter. Which document each was reading is the difference.

A cross-account database move is the diagnostic, not the work. It surfaces architectural decisions you've been making implicitly for years.

The shape of your IaC architecture is downstream of team size. Most pain comes from running yesterday's architecture at today's scale.

Cloud architecture debt has four shapes: governance, operational, knowledge, optionality. Read the shape before you decide what to pay down.