Whatever happened to the Sun's missing siblings?

Whatever happened to the Sun's missing siblings?: "The Sun was born 4.6 billion years ago inside a nebula that likely gave birth to a thousand other stars. So what happened to the Sun's siblings? The search continues, but they could be practically anywhere in the Milky Way.

A thousand stars seems like an easy enough thing to find, but the Milky Way is actually home to somewhere between 100 and 400 billion stars. Even if all the Sun's sibling stars were clumped together in a single cluster, they'd still be phenomenally difficult to find, and that task is only complicated because they've likely spread themselves throughout the entire galaxy."