roughly-howbig-guesses-2026-09.csv

Source: every guess from the 50 daily rounds of "How big?" (roughly.is), 17 Sep 2026 08:59 UTC to 27 Sep 2026 00:00 UTC.
Filter: game=howbig, mode=daily, not archive plays, only the round the item was scheduled in on that day (day plan), rounds since the game data last changed (17 Sep 2026).
8,311 rows, 50 rounds, 1,756 devices (counted, not included).

Columns:
date_utc     UTC day of the guess
round        round 1 to 5 of that day
reference    the object shown on the left (fixed size)
reference_m  its size in metres
item         the object the player resized
true_m       its real size in metres (length or height, as in the game)
guess_m      the player's guess in metres
factor       guess_m / true_m (1 = exact, 0.2 = five times too small)
direction    too big / too small
lang         game language

No device ids, no times finer than the day. Not a representative sample: people who chose to play a daily browser game.
Study: https://roughly.is/blog/hindenburg-guessed-too-small.html