Quote Originally Posted by jackvance
Btw I've also never seen atoms, air (as in, oxygen), radiowaves, microwaves, etc..
you may not have seen them, but there are those that have seen them using instrumentation. and they are not "impossible to imagine".

According to Wolfgang Pauli's Exclusion principle (1925), certain pairs of subatomic particles, even when separated by great distances, can instantaneously "know" what the other is doing...the phenomena was proved in 1997 when physicists at the university of geneva sent photons seven miles in opposite direction and demonstrated that interfering with one provoked an instantaneous response in the other (pgs 145-146, A short history of nearly everything, Bryson, B.) not as good as a brief history of time, but much easier to read.

hard to imagine how nothing can move faster than the speed of light, yet this is so. another hole for einstein.

clearly not "all observable occurrences" can be explained via einstein.

and the differences in predictive value of newtonian mechanics vs einsteins theory of gravity are very small. a reworked or modified version could probably be produced to close the gaps further. and just because its the best we have currently, doesnt mean we cant question it