When “smart cells” become readily available, what medication would you like to eliminate by having smart cells make the necessary adjustments to your body? How helpful would this be in the long range? (Case 1: “Hacking” Living Cells for a Good Cause, p. 429)

I would like to eliminate medicines for kidney problems.

Explanation:

Kidney problems are very bad and cause a lot of suffering for people who have them. In addition, medications are expensive and side effects can be just as harmful as kidney problems. For this reason, I would like the smart cells to make the necessary adjustments to eliminate any kidney problems permanently, making the effect useful for the long term.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.