in my perspective...<br />
that sounds like <br />
a wee bit negative way<br />
to approach people...<br />
but thats justme...<br />
it's common sense....yeppers...
No it has been proven over time not by scientific evidence. Very clever people often do not have common sense, mind on other fair more challenging things.
No, they mean "Are you really too stupid to see how obvious this is?"