The "borrowing" is not without some side effects which might be hard or impossible to revert in the future.
It's like driving accelerating train without the breaks and hoping that someone builds tracks fast enough that we won't derail
It's like driving accelerating train without the breaks and hoping that someone builds tracks fast enough that we won't derail
Sure, evolution keeps running its RNG and eventually new and interesting species will start showing up. But that doesn't replace the causal link that is lost. Today, the variety of organisms on our planet gives biologists a chance to understand how crucial mechanisms of life evolved. As we erase that history, we make biological sciences that much harder, and by extension, slow the progress of everything from medicine through biotech to chemistry and material sciences.