SF also stands for 'Speculative Fiction' - which takes an unusualy premise or assumption, and prods and pokes int and tries to get some interesting thinking and an enjoyable, suprising story out of it.

Blindsight is literally:

We went to the macguffin in a spaceship, and a bunch of unrelated stuff happened along the way, then when opening up the macguffin like a fortune cookie, "big idea" was written on a slip of paper inside, and we had our minds blown. The end.