people make new tools to help them be more quick and effiecent. so lets say at the start of the 18 century in america early stages farming was hard so in 1842 a guy made the reaper to make farming and harvasting easier. in other aspects tools can be create to make one more powerful than the other like how we started with rocks now we have weapons of destruction to conquer or hunt.
A hypothetical entity or mental imagery of things that is presumed to stand for perception, thought, memory during cognitive operations. E.g making a mental rough estimate of project.
