It doesn't make sense for the entire science community to work on only one project at a time -> multiple research projects in different schools like the original one should be possible.
All the items in the research projects should lead to some of tangible improvement shown when choosing so that we can assess which one to choose.
Last but not least, at any one play not all the research tree should be available e.g. laser I and II but not III else there will always be one optimal research path for each game
