Hey guys I was wondering if you could give us a broad overview of how you see the tech tree working in the final game. At the minute we have the wood based low quality furniture like workbenches and stone ovens that is clearly less desirable than the items made with a number of processed raw materials like the brewing tank and the power saw, that I mentally mark as level 1 and 2, although the building materials you get on a regular basis makes that a non choice right now. Basically I wanted to ask if you intend on a final structure that's largely flat or largely tall? Also are the steam pipes still a thing? And while I'm being tremendously nosey, are we going to see mega productive megaprojects or 'fun'?