I really like this game, but atm its too easy to obtain new Blueprints.
How it works now:
Find a blueprint - learn it
Find a new Item - drop a research kit on it with one paper in your inventory and you learned it direktly.
But it should be much harder to obtain.
Add the possibility to dismantle Stuff (you will get some ressources back and if you have a research kit and paper equipped there is a 20% chance to create a BP).
If you craft a basic Item like a cloth Helmet, you have the chance of 5% to learn the next level of it (leather Helmet).