Who the problems are Recently my attention was drawn to a quote from Peter Drucker who said, "If there isn't dissent, we would not know where the problems are." I said to my husband, "Look, if there isn't dissent, we wouldn't know who the problems are." I think one has to keep that in mind. Peter F. Drucker, Every Tool Shapes the Task argument
Managing Oneself A Book by Peter F. Drucker Only from strengthFeedback analysisTaking pride in ignoranceBut bulldozers move mountainsWaste as little effort as possible on low competence+8 More Never change the technologyWhat to learn managementdisciplinewisdomwork
Up and Down the Ladder of Abstraction An Essay by Bret Victor worrydream.com The most powerful way to gain insight into a system is by moving between levels of abstraction. Many designers do this instinctively. But it's easy to get stuck on the ground, experiencing concrete systems with no higher-level view. It's also easy to get stuck in the clouds, working entirely with abstract equations or aggregate statistics. This interactive essay presents the ladder of abstraction, a technique for thinking explicitly about these levels, so a designer can move among them consciously and confidently. From a roving viewpoint abstractionunderstandinginteraction