In addition to the highlights above, Python 4.0 includes many other enhancements, such as:

data = read from open('file') # hypothetical

>> legacy_run("python3_simulator")

Dataclasses already blur this. 4.0 could standardize a simpler constructor protocol.

Elias exhaled, his hands shaking slightly. "No segmentation faults?"

The screen didn't scroll text. It bloomed. The old monospaced font dissolved into a three-dimensional syntax tree floating in the terminal window. The code didn't run line-by-line; it pulsed.