Developing the brain is both difficult and extremely dangerous. Although Steve had mastered how to develop the brain using the force, he still found it difficult to evolve the brain as a whole.
Of course, it was also possible to develop independent regions of the brain. However, doing so would make the region more developed, while the other regions would not be able to keep up, resulting in a disparity in terms of their developments.
For example, if the emotional processing system in the brain was developed, Steve's emotions would become hyper-sensitive, while the rest remained at the same stage of development.
Therefore, in order to balance everything out, the Lemurians-led brain development was much more well-balanced. But, it was difficult to achieve!
Over the past hour, Steve felt that his progress had been quite slow. If the progress were to keep going at this same snail's pace, in three days' time, he would not be able to achieve much.