Hi, I just started playing KSP two weeks ago, and I'm totally hooked! I am a long time "Elite" player (Elite 1984, Archimedes Elite, Oolite & recently Elite: Dangerous about which I am somewhat disappointed), was in for something more hardcore (in the physics/mathematics sense) and so I had started playing the early access of Rogue System. Because of Rogue System, I need & want to learn more about orbital mechanics, so I started searching the net and found that xkcd cartoon graph 1356 which most here probably already know. OK, bought Kerbal Space Program, and a whole new world has opened itself to me -- well, a whole virtual solar system of worlds that is. I like learning as such, but this is such a fun way to do it. It makes me feel young again. Playing with far too many addons on my Windows machine (and now deselecting them one by one to figure out which one causes the game crashing, but perhaps it is not any single one but rather the amount/combination of them), and plain vanilla without any toppings on my Linux laptop (I was surprised this morning on how dependent I already am on the addons and how it had caused me to not learn some basic techniques of the game). In "real" life, I am teaching maths, information systems and philosophy of science at Brussels University (VUB) and working on a PhD about axiomatic systems for relativity theory. Before that, I worked as a programmer/electronics designer/sysadmin for about 20 years, among others at the Royal Observatory of Brussels (not observing the king, but the celestial bodies).