David Pearce has suggested that genetic engineering and other contemporary processes cannot only alter the way humans experience emotional and physical pain, but that world ecosystems ought to be redesigned so that animals don't suffer in the wild.
David Pearce berpendapat bahwa rekayasa genetik dan proses kontemporer lainnya tidak hanya bisa mengubah cara manusia mengalami kesakitan emosional dan fisik, tetapi bahwa ekosistem dunia seharusnya didesain ulang agar binatang tidak menderita di alam liar