i know it may sound dumb but i think sometimes scientis contradict themselves in the matter of quantities in space, for example as here on the solar system the supposedly closest star is at a distance of aproximattley 4 light years, which sounds ok, but then you hear thta the universe is 93 (american) billion light years, and then you see things like pic related saying that there are trillions of stars in just the andromeda galaxy, so the case of earth having in a complete radius a nearest star at 4 LY , or the case of stars being a lot closer is a lot more common in other places of the universe, hope that i made myself at least a bit understandable, english isnt my native lenguage.