the.com/unfamiliar
The territory where your instincts shrug and your map ends in a blank.
means Not known, recognized, or experienced before; lacking the comfort of prior acquaintance.
from The Latin familiaris meant of the household, of the servants and kin you knew. Slap on un- and you have stepped outside the front door into strangers.
Brain costNovel things demand more attention than familiar ones.
Mere exposureRepetition alone makes the unfamiliar likable.
Spelling trapOne l, not two, despite the eye.