In the book, Tom Murphy explores the most likely energy sources to sustain civilization into the future. It is a textbook, so he gets into the calculations for each energy source. By far the most promising is solar. There is plenty of solar power at our current energy use levels. So solar could allow for growth for a while longer. But we are not talking thousands of years, at most growth (at our current levels) with solar could only last a couple hundred years. And then our planet is covered in solar panels. Hopefully growth stops before that point!
2/N
The book was written in 2021 and solar has grown dramatically since then. I think synthetic fuels created using solar power will be a big part of the energy mix going forward. There are companies like Terraform Industries
https://www.terraformindustries.com/ and Prometheus Fuels https://prometheusfuels.com/ (these are not an endorsements) which are pushing in this direction. If synthetic fuels take off, then there would be massive demand for more solar.
3/N