Dr. Dreamer
In case anyone was wondering, after doing the math, the main character on average only spent 3 hours per day cultivating to reach his current level.
Going a step further and calculating the time to reach level 20 nets us a time of about 120,000 years, now to fit that in to the 100 years he gets per level, from the very beginning he would have to be cultivating at a rate of 60 times faster than he currently is, and he would have to cultivate 24/7 every day forever. So more realistically he needs to up his speed by several hundred for it to even be worth while past a certain point. This optimal point is level 9, as after this point it takes longer to cultivate than the extra lifespan you receive, and that's also assuming you cultivate nonstop. Equation used is 2000*2^(n-1)=hours needed Where n is the level you are trying to achieve.
I feel like this novel has the potential to be good but the careless writing makes this worse. All of a sudden he can exploit the system by using non-existent magic stones. Not to mention the mc seems to be quite an idiot. I was hoping for him to document all this since he had said he had crap memory. And stop with the time skips if they don't mature the character at all.