Here is some reading material you might be interested in as it follows a similar premise to what you have proposed.
Plato's Allegory of the Cave
http://www.philosophypathways.com/essays/bellotti1.html Descartes's Malicious Demon & Method of Doubt
http://webspace.ship.edu/cgboer/platoscave.html At this level of scrutiny of the scientific method/philosophy of the mind, it becomes clear that the true situation of existence is beyond our grasp. The situation turns more towards questions of: what of our knowledge is probable and reliable towards our goals.