Here's something I never thought I'd post a thread about: population growth. For a timeline that I'm working on, I have medical technology progressing more quickly from a combination of the following: higher funding from both government and private sources, faster computer chips leading to earlier breakthroughs in research, environmental stresses necessitating said research, cheaper drugs providing better treatments, and international cooperation towards the goals of reducing death from disease. Between all of these things, what I'm wondering is this: between the early 1970s (the genesis of the War on Cancer and microchip revolution) and today, is it possible to add 10-20 million people to the U.S. population? I've estimated half of this could come from better cancer treatments, with 5-year survival rates increased by about 30-50%. Such technology would also increase population levels in other countries, but I'm focusing on the U.S. right now. Is this plausible? Am I overestimating the number of people who would survive thanks to medical advances, or am I underestimating it? I'd also allow the factoring in of higher immigration to the U.S. thanks to a slightly higher standard of living and richer nation overall.