Why do we humans have to constantly improve our work tools?

to constantly improve our productivity, durability of structures and items, quality of products, ease, ect ect

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.

thomas jefferson is the answer