Philosophy, Politics and Values: Could there be a New Renaissance or has it gone too far?
I am glad that you think that there will be enough people around for a New Renaissance. Nevertheless, I do think that there is likely to be a lot of population reduction through many factors, from war and inequalities. Of course, this is not the first time and the ability to cope with change is questionable.
You say about learning to adapt without I-phones and relying on supermarkets, but I am not sure that many could. That is because most people don't have sources of local food. Also, it is becoming difficult to access so much from money to medical care without doing it online. Life for many is becoming more and more fragile. Theoretically, technology should be enabling greater self sufficiency but it is doing the opposite of creating so much dependency.
A lot of fragility comes from inequality in mass society, with those at the higher scale being able to access comforts and those at the bottom often left with nothing. The lack of community in the Western world may be a critical factor too. In parts of the world, such as the third world, people may be able to cope through sharing and group support. But, in the first world the nature of how individualism has developed means that many suffer in isolation.
The problem comes down to the nature of the 'mass' society and consumer materialism. New economists, such as Schumacher pointed to the need for smaller and local resources but the opposite seems to be happening. The pandemic may have taught some lessons and in England there is some development of community hubs. Some have had a chance for a rethink, but it is so variable and political leaders make tough choices over resources.