That is the point I seem to be arriving at. Making about 60 million RP per hour. The weapons are upgraded enough to ensure there is always a monster in production as they can be killed faster than they can spawn. Now it is about 20 days of leaving it to play itself to get to Rockster RP Drop Value level 19, with nothing to do in the meantime.
It has been keeping me amused, running on my 2nd monitor. I've got a pretty comprehensive set of spreadsheets for trying to work out where best to spend credits to maximise Rebirth Points.
I even learned how to use ChatGPT at one point to have it work out one complicated spreadsheet formula. I had already done so myself and was not sure of the results. ChatGPT gave me an answer and a few days later with comparing its results with mine, found ChatGPT had got it wrong and mine was right!
In previous computer games in the past I have learned how to use a dynamic debugger to amend the compiled code, learned how to use a hex editor to edit saved games, learned how to use a memory editor to edit variables while a program is running. I have studied ancient civilisations to improve my combat strategy in wargames. I have kept my maths skills up-to-date with statistical analysis of the numbers in games. For this one, I learned about Artificial Intelligence engines and proved for myself how they are not entirely reliable, with an actual example to prove it.
It's funny what you can learn from playing computer games.