Why there is something rather than nothing
The question about why is there anything at all instead of nothing has been raised or commented on by philosophers including Gottfried Wilhelm Leibniz, Martin Heidegger, and Ludwig Wittgenstein – who called it the fundamental question of metaphysics. The question is general, rather than concerning the existence of anything specific such as the universe/s, the Big Bang, mathematical laws, physical laws, time, consciousness or God.
Open the “Why there is something rather than nothing” section on Wikipedia →
Source: List of philosophical problems (CC BY-SA 4.0)