Yinsen was serious, of course, but there was no point in saying too much right now. He only said one thing:
"The universe is vast!"
Then he continued training diligently.
With his training method, he could ensure steady growth in strength. Better yet, everyone was currently at roughly the same level, and the gap between them was not too great. They could all serve as sparring partners for one another, which would also promote their collective improvement.
After training for a full two years, they had all completely adapted to the weight. They wore their Weighted Gear even in daily life, and to them, those clothes were no different from ordinary clothing. They did not affect their everyday routines.
Even while wearing the weights, they still possessed considerable Combat Power.
"How strong would we be if we took off these weights now?"
"No idea."
In the original story, Goku had been the first to undergo one-hundred-kilogram weight training. He trained under Kami with weights for three full years, and when he removed them at the World Martial Arts Tournament, his Combat Power was over three hundred.
But later, when Vegeta and Nappa invaded Earth, Yamcha and the others also underwent weight training after learning that powerful enemies were coming. Yet in less than a year, all of them had raised their Combat Power beyond one thousand.
Setting aside the special factor of "plot necessity" in anime and the influence of bloodlines, one's horizons, goals, and pressure were important factors in determining how much progress one could make.
There was one more factor: one's foundation!
The reason Yinsen's progress was so slow right now was because his foundation had been too weak. If he had possessed a foundation like Goku's, then after this kind of training, even if he had not