Think about it

Ya, think about it - i always say this when somebody doesn't follow in the meeting or jump to the conclusion of infeasibility too quickly.
People seem to have tendency not to think thoroughly if they come across something new or unfamiliar.
To me, "think about it" implies the undergoing of a thorough thinking process rather than recalling your memory or judging by your perception. So next time think deeply before jumping to conclusion and you may discover some new insights!