This is fantastic! It would be nice to have a select input with countries that would update the population input based on the country selected. e.g. "United St

This is fantastic! It would be nice to have a select input with countries that would update the population input based on the country selected. e.g. "United States of America - 327,000,000". It also may be nice to have a text input along with the range such that you can choose to either manually key in a value or use the range.