This page costs what it says
Every page claims to be worth your time; none say how much. This one tells you its price in your seconds, at your measured reading speed, then chooses which of its own sections to show in full so the words it renders never exceed your budget — and proves the choice is the best possible one, by enumerating every alternative, in front of you.
1 · Measure your speed
Read this …-word passage at your normal pace, then press the button.
Or set a speed by hand:
2 · Set your budget
3 · The article, priced to fit
4 · The certificate
Recomputed on this device on every change. The selection algorithm (dynamic programming) is checked against brute force over every subset at every budget, and every cell of its table is checked against its own recurrence.