[beardyw]

Well on my phone it's nearly impossible to use. If I grab the text at the bottom I can center the globe. If I pick a place and move the slider I seem to get population for everywhere I didn't select.

Hard to say it was compelling.

[carban]

For now, it is not optimized for mobile, but I'll work on that. The slider updates every country with the population number for that year. I hadn't thought about updating it by selecting a specific country, but it's a good feature.

Thank you for your feedback!