In order to conclude, I believe it is best to summarise our findings. I have found that beard length is proportional to two things :

1. Physics Knowledge
2. Scientific Respect

Using state-of-the-art technology, I have plotted two graphs, beard - knowledge and beard - respect. As you can see, beard length (upto 10 metres) is directly proportional to physics knowledge (%).

It is also evident that beard length is also directly proportional to prestige.

So if you see anyone sporting facial hair, beware, they might be watching you when you're asleep. In order to reduce this risk, I shall comprise a list of those who are known offenders. I hope you have found this interesting and I hope you all appreciate the risks I took to bring you this information.