However, if you take a look back and think about what have been the most empowering innovations that enabled us to build artificial machines that swim and artificial machines that [fly], you find that it was only through understanding the underlying physical mechanisms of swimming and flight that we were able to build these machines.
Sin embargo, si miramos al pasado y pensamos cuáles han sido las innovaciones más poderosas que nos han permitido construir máquinas artificiales que nadan y máquinas artificiales que vuelan, hallarán que fue solo  comprendiendo los mecanismos  físicos subyacentes del nadar y el volar que pudimos construir esas máquinas.