It is a rebus, fine
But also a riddle
It must be a sign
Spoken but seen a little
not sure though,
from curtisks answer and the last line : "Spoken but seen a little". As, by definition : bind spot is, An area that is not able to be seen, either due to its location outside of the field of vision
Is it "Blind"? It reminded me of one of the standard street signs, not seen too often except in areas where blind people live
Morse code? Morse code uses dots and dashes. You can use it as a sign language to communicate (thats what some WWII POWs did in Japanese concentration camps) and its mostly spoken (or heard) in blips and bloops (more or less) and sometimes seen a little.
Blind Corner Ahead?
The sign looks like a warning to look out for blind pedestrians, but the stick figure is just a head, or "just ahead". The walking stick is pointing to a corner of the sign.
Is it sign language? Just a guess; doesn't really fit the picture but it fits the third line: It must be a sign/Spoken but seen a little
Is it a
because it looks like a
I think it’s
The dot is a “spot” and the line is either the “on” part of an on/off switch, or the spot is “on” the line (collinear).
Building off @curtisk 's answer:
It follows street sign format, and "blind drive" is a common street sign (at least around me); the dot could represent Braille (used by the blind), and the line could indicate forward movement (=drive?).
it is black and white :) so you see less