Nothing!

Reassurance that you're still sane!

Computers are stupid, not you !Don't let the stupid computer get you down. You're brain is far more powerful than that computer you're trying to use. It's frustrating because of course we assume a computer would be intuitive, but alas, that is not the case. Computers are a human creation, and are full of faults... we are only human, after all. We make mistakes but that does not make us stupid but just careless.

ps: computer is just one example that I had used.

Anyway I thought this below is relevant:

We start, then, with nothing, pure zero. But this is not the nothing of negation. For not means other than, and other is merely a synonym of the ordinal numeral second. As such it implies a first; while the present pure zero is prior to every first. The nothing of negation is the nothing of death, which comes second to, or after, everything. But this pure zero is the nothing of not having been born. There is no individual thing, no compulsion, outward nor inward, no law. It is the germinal nothing, in which the whole universe is involved or foreshadowed. As such, it is absolutely undefined and unlimited possibility -- boundless possibility. There is no compulsion and no law. It is boundless freedom.

Charles S. Peirce, "Logic of Events" (1898)