Rats is probably an improvement over the usual mice. Rats actually naturally have very high cancer rates… in captivity rats live an absolute max of 2 years, and about 80% of them will die because of some sort of cancer.
In the wild it’s less so, but only because the average lifespan is less than a year (predation, traps, etc).
He refers to the objective fact that the rodent veterinary field is making great advances, while human medicine continues to stagnate, as the cross of the time has shown that rodent treatments hardly ever works in humans.
I suggest then, complete biological mappings of the human being (big words), the same way does exist ADN human mappings, for being able to run simulations in the same way the physics field is constantly doing.
I see a world, were one goes to the doctor, takes an ADN sample, and a biological map is correlated, were to see if the prescribed drugs interacts well or bad between them thanks to this mappings, at same time the research teams run simulations for to find quickly possible cures to the targeted sickness by isolating common patterns in different biological mappings (different human key ADN structures).