In a famous conversation between John Cage and Morton Feldman in 1966 the two composers consider the question “is intrusion a distraction or is it culture?” and what it means to be “deep in thought”. They suggest how being interrupted can help us move out of thought and into experience. The english word “afterthought” is usually employed in a negative sense, something of secondary importance. What could After Thought mean for us today, amongst all our mindless thinking machines and mindfulness gurus?