It's easy to complain about overpopulation when some tool is head-down with his smartphone and you can't get up the subway stairs fast enough . Or when you consider climate change and the swirling Pacific Coast Garbage Patch choking seagulls and fish with plastic straws and shampoo bottles.

But, as it turns out, overpopulation is not the problem you think it is. As a matter of fact, time has told us that as the world gets more populated, we benefit more from one another.

Kurzgesagt – In a Nutshell, a fantastically colorful and scientific YouTube channel, offers an explanation for the world's population spikes called Demographic Transition. It is a four step process:

Bad living conditions (sanitation, diet, medicine) force people to give birth more than they need because babies die too often.
Eventual economic progress and better living conditions fuel a population explosion.
Fewer deaths mean fewer babies are born, and population growth slows.
Finally, the population growth settles and ends.

What might be surprising to some is that most of the world's countries have made it to the fourth stage. And Kurzgesagt makes a great justification for re-thinking the "problem" of more people:

“No matter what your motivation is, whether you dream of a world where all people live in freedom and wealth or you just want fewer refugees coming to your country, the simple truth is that its beneficial to you personally if people on the other side of the globe can live a good life.”