People say that even with nuclear energy, when it comes to using energy, humans are still essentially boiling water.
This statement is both correct and incorrect. It's correct because using steam to convert the heat generated by nuclear energy into kinetic energy indeed remains a primary technical method.
However, the incorrect part is that the steam technology used in 2077 is completely different from when steam engines were first invented:
The conventional "steam" technology here is called ultra-supercritical steam cycle technology, where the pressure can reach over 30 MPa and the temperature exceeds 700 degrees Celsius.
Even the steam from the common ultra-supercritical cycle technology is difficult to define as ordinary steam, and the equipment composing these technologies is extremely complex.
