Our knowledge of medicine still seems to be an an early stage. For instance, we still seem to be discovering large organs in the body. I feel that way about o

Our knowledge of medicine still seems to be an an early stage. For instance, we still seem to be discovering large organs in the body. I feel that way about other fields too -- geology only had its fundamental theory widely accepted less than 100 years ago. We're still unsure of the number of planets in the solar system, even. In short, it's an exciting time to be alive, with a lot of theories yet to be discovered in science. Nearly all of the low-hanging fruit have been found now, but there's a lot to we will yet learn from the complex parts that we don't understand well enough.