A few years ago, I wrecked my knee.
Not dramatically — no surgery, no crutches, no good story to tell at dinner. Just a low, stubborn ache that came and went for reasons I could never quite pin down.
The pain wasn't the hard part. Not knowing was. Some weeks felt like progress, some felt like backsliding, and most felt like noise. I genuinely couldn't tell whether I was healing or just having a good Tuesday.
So I built Rebound: a sixty-second daily check-in that turns all that vague feeling into something I can actually look at. It turns out "how's the knee?" has a real answer — you just have to write it down for a month.
— Emile

