This reminds me of a research project I did in university (studied ecology).
The goal was to find out how much food geese need during migration.
You can’t weigh them before and after they feed.
So we went to a meadow they always frequent on their migration path.
And then we used a ruler to measure the length of all the grass blades before and after they fed.
In addition, we collected what they left behind.

Like coding on a phone, it was foul shit.