If you scroll for about 30 minutes every day, that is 76 days over the next ten years, and 152 days over twenty. Here is the receipt, line by line, and what the same time could be.
30 minutes of scrolling a day is 183 hours a year. Expressed in full 24-hour days it is 7.6 days, which is easier to feel: it is the length of a long holiday, spent in roughly 30-minute pieces you will not remember individually.
Over ten years the same habit is 1,826 hours. That is enough time to read about 304 books at six hours each, to learn 3 languages to a conversational level (roughly 500 hours each), or to watch every episode of Friends 21 times.
The world average for social media is about 2 hours 20 minutes a day (DataReportal, Digital 2025). 30 minutes a day is 79% below that average, which puts you in the "Light thumb" tier on the receipt. The tier names are a joke; the numbers are not.
Cutting just 30 minutes a day from 30 minutes gives back 7.6 days a year and 76 days over ten years, without changing anything else. Cutting it to one hour a day would return 0 hours a year. None of this is advice; it is arithmetic you can act on or ignore.
iPhone: Settings → Screen Time → See All App & Website Activity, weekly view, add up social and entertainment apps and divide by seven. Android: Settings → Digital Wellbeing → Dashboard. Then print your own receipt and send it to the friend who claims they "barely use their phone".
Other amounts: 1 hour · 1.5 hours · 2 hours · 2.5 hours · 3 hours · 4 hours · 5 hours · 6 hours · 8 hours.