Earlier quoted context omitted.
Garry's blog post about this was particularly insightful.[0] He shares a graph of his progress and how it goes both forwards and backwards, as well as the things he's learned along the way. 0: https://garry.tv/2018/10/17/fatty/
> When you’re weighing yourself every day you need to understand that you’re creating a weekly/monthly average. What you ate yesterday isn’t going to show up on the scales the next day. If you ran around the park yesterday, don’t expect to have lost weight today. I only weighed myself once a week for this reason. Every day can be demoralizing if you have a bloat day, but once a week gives enough to have a pretty regu…
We hackers can geek out on the math in the Hacker's Diet[0], which goes into various smoothing algorithms and plotting styles to show the daily weight and smoothed trends.