EpisodesBits and Bobs 3/30/26Mark Weiser: "A good tool is an invisible tool.Mark Weiser: "A good tool is an invisible tool.2026-03-30 · Bits and Bobs 3/30/26Mark Weiser: "A good tool is an invisible tool. By invisible, we mean that the tool does not intrude on your consciousness; you focus on the task, not the tool."