As the subject says: "This May Be A Dumb Question" ....
I built my version of flightgear on linux Mint using the download and compile scripts. I've been seeing some posts in the development forums on building fg from scratch. What is the difference between download_and_compile and building from scratch? Is there an advantage of one over the other? Any elaboration to provide clarity would be greatly appreciated. In other words, why use one over the other, etc. Thanks in advance.