Isn't it bunk to apply extrapolation to two countries that start from a different per capita base? Germany is significantly lower in per capita emissions so th

Isn't it bunk to apply extrapolation to two countries that start from a different per capita base? Germany is significantly lower in per capita emissions so their reduction is (I'm assuming) a lot harder to achieve. It's like comparing fat loss between someone who starts overweight vs someone who is starting neutral bmi. https://ourworldindata.org/co2/country/united-states?country=~USA#per-capita-how-much-co2-does-the-average-person-emit https://ourworldindata.org/co2/country/united-states?country... and add Germany. Happy to hear why I'm wrong, I'm certainly not an expert in stats or emissions.