Question: I have a hard time understanding #3 and #8 of [Lehman's Laws of Software Evolution](http://en.wikipedia.org/wiki/Lehman%27s_laws_of_software_evolution). 

The laws are:

3. (1974) "Self Regulation" — E-type system evolution processes are self-regulating with the distribution of product and process measures close to normal

and 

8. (1996) "Feedback System" (first stated 1974, formalised as law 1996) — E-type evolution processes constitute multi-level, multi-loop, multi-agent feedback systems and must be treated as such to achieve significant improvement over any reasonable base

The rest of the laws are clear to me. 

Could someone explain these two laws?

Answer: 
After talking to a professor at my university, and using the information provided by Ilyas and Boris (I will +rep as soon as I recieve 15 rep myself), this is what I have concluded:

Law 3 specifies that the growth of the system will follow the normal distribution curve. This means that the growth will be slower in the beginning and end of the life cycle compared to in the middle.

Law 8 states that software evolution is a complex process where feedback shall be collected from multiple sources (users, managers, runtime environment, application domain, etc.) to achieve significant improvement during the evolution process.

The following link is a pdf which contains alternate explanations for each of the eight laws: [http://www.engr.uvic.ca/~seng371/lectures/L12-371-S13-bw.pdf](http://www.engr.uvic.ca/%7Eseng371/lectures/L12-371-S13-bw.pdf)
Not sure about law 3 yet, but here's my take on law 8:

Law 8 would be a perfect example of a successful agile project. The system is adapted to the changing requirements of users, product owners and other stakeholders. By using the system, users find out what they really want to do with the system. Product owners and management prioritize new features according to a changing environment and the team discovers better ways of doing things by gaining domain knowledge and experience. That sounds a lot like a multi-level, multi-loop, multi-agent feedback system.