A star's habitable zone is the ring of orbits where a planet's surface could hold liquid water — not so close it boils away, not so far it freezes solid.
Its position is set almost entirely by the star's luminosity. A faint red dwarf puts out a tiny fraction of the Sun's light, so its zone hugs the star — a planet must orbit close and fast to stay warm.
Temperature also depends on the planet itself. A bright, icy surface (high albedo) reflects sunlight away and runs cold; a greenhouse atmosphere traps heat and shifts the whole habitable band outward.
So “habitable” is a negotiation, not a hard line: change the star, the mirror, or the air, and the gold band slides. That is why the search for life is really a search for the right distance.
Something in the simulation stopped unexpectedly — the lesson continues without it. Nothing you did was wrong; you can move on.