In a lot of computer things (such as programming languages, or systemenvironments) we have the choice between being concise and leavingthings implicit, and being verbose but making things explicit. Hereis the thing about this choice:

Computers are fine with implicit things because they never forget ;they effectively have perfect memories for this sort of thing. Buthumans have limited memories (especially short term memories) that haveto be periodically reinforced, so we necessarily forget some of theimplicit stuff every so often. Which periodically causes