geo: means earth
metry: means measure
euclidean geometry: shapes that exist in flat space
in flat space all shapes are made up of straight lines
science now knows that space is flat
an endless straight line is the least complicated notion of forever
a triangle is the least complicated two-dimensional shape
a triangle in motion along a straight line has the potential to
continue to move indefinately and this time we do not stop
. . . . . . .