Where was the picture taken?
You'll get 20 pictures. Each picture is taken either in Peru or in Greenland. Distribute 100% probability between the two possibilities.
⛰️ Peru
❄️ Greenland
The points are logarithmic. This ensures that the optimal strategy is to accurately estimate your uncertainty. 50/50 gives 0 points regardless of the outcome. High confidence can give more points — but if you are wrong, the penalty becomes larger too. See more about the scoring system in the FAQ
You are not meant to be 100% certain of the answers here. If you are not sure, then let it show in the percentages. Our society normally rewards overconfidence. This quiz doesn't.