The US is also probably not the best example because it’s a very different situation. Even in the 19th and 18th centuries natural birth rates accounted for about half of the population growth in the US.

The current projection for the UK is that between 2021 and 2036 immigration will account for 92% of the population growth, and based on the previous 2-3 years this might actually be an underestimate.

I'm unsure if immigration is a sustainable solution - immigrants also get old and retire. But perhaps it works out because immigrants have more kids than people that were born here?

I'd recommend Australia, for anyone considering moving, because it has better economics and a wider choice of locales and jobs.

I actually wonder why this isn’t a bigger talking point, we are probably not at the point of no return yet but many countries are getting there and people will be caught by surprise as whilst the effect is delayed human life expectancy isn’t that long and it doesn’t take more than a couple of generations like ours until we are going to be facing a major crisis.

I really don’t know where we went wrong, and I’m not sure it’s purely financial either (tho it is for many), at least from my anecdotal experience.