Don't confuse hypothesis and theory. The former is a possible explanation the latter, the correct one. The establishment of theory is the very purpose of science.

Facts are not science - as the dictionary is not literature.

In the sick room, ten cents' worth of human understanding equals ten dollars' worth of medical science.

Science fiction, outside of poetry, is the only literary field which has no limits, no parameters whatsoever.

In science fiction, you can also test out your own realities.