I suspect the current contents of a solar system is a poor proxy for everything that’s been ejected from it. Pluto is 0.0006 light-years from the sun, there’s

I suspect the current contents of a solar system is a poor proxy for everything that’s been ejected from it. Pluto is 0.0006 light-years from the sun, there’s a great deal of space between stars we don’t know that much about. Further we dramatically underestimated the number of expo planets for decades. Quite reasonably we don’t put a lot of weight on stuff we can’t detect.