the set of all reals, and then some

this set includes such members as:

1
2
55
420
69
9999
65535
298534230809823407
-589893.8911111111...
the square root of 5
your neighbor's dog
your mother-in-law
Elvis Presley
libertarianism
sex
drugs
rock 'n' roll
illegal aliens that are actually not from Earth
the land area of the city of Denver, Colorado as expressed in number of blades of grass
that one time you wanted to tell your friend to buy you a burger but then you remembered that they're vegetarian or something like that that's not actually a relevant reason but seemed like one when you thought of it