# Ted Kaminski - System boundaries: the focus of design (Highlights)  ## Highlights - Since we’re embracing an approach where some design fixes can be put off until later, what should we prioritize to fix sooner? The quick answer is: anything that’s difficult to change later. ([View Highlight](https://read.readwise.io/read/01hr9y32dn7wwrp4v9e93ev0sz)) ^688860182 - But while introducing boundaries has its re-use benefits, it also introduces costs. Changes cannot be easily made anymore. ([View Highlight](https://read.readwise.io/read/01hr9y5f6me3exz8c08chvcx9d)) ^688860518