## Highlights > Effort is evidence of broken feedback > Every tool is a feedback system between you and your environment. That includes our tools for thought. This suggests three different relationships we might have with our tools for thought: broken, balancing, reinforcing > - Broken feedback: linear efforts yield linear returns > - Balancing feedback: linear efforts yield convergence > - Reinforcing feedback: linear efforts yield exponential returns ([View Highlight](https://read.readwise.io/read/01hvy5yn8k2d6ef193aw13neg5)) ^zgnoby **Most note-taking apps have broken feedback**. Step one, you write a note, step two… there is no step two! You cast your note into the abyss of Apple Notes. It will never return to you, unless you go back and deliberately look for it (effort). ([View Highlight](https://read.readwise.io/read/01hvy5z4bxv0rajx3psa7154k4)) ^9bkka9 - 💭 this requires us to create our own feedback loops so we can alter the kind of feedback we have  ([View Highlight](https://read.readwise.io/read/01hvy65s10xahj5bj50jk31ssv))