The taking away of past computer technology research is really bad. I feel now I have wasted a lot of time on this game. I like the challenge of learning the skills and making progress. But when hours and days of effort are taken away with no compensation, it makes Real Life look much less unjust and unrewarding by comparison. If you really want people to continue in this game, you cant keep lowering the rewards to effort ratio. And taking away the achievement of past effort will make it possible for me to finally just walk away from this game. I have been tempted to buy Hydarian Crystals, but am now glad I never did. Changes like this confirm to me that it would have been wasted money. If I did not trust Xcraft developers before, this makes me trust you even less. BraveAlex