Train of Thought (A-ha song) Train of Thought (A-ha song) "Train of Thought" is a song by Norwegian band a-ha. It was released as the fourth single from the "Hunting High and Low" album. The lyrics for this song were based on the existentialist authors and poets Gunvor Hofmo, Knut Hamsun and Fyodor Dostoevsky - Pål's favourites at the time. It was a-ha's third consecutive top ten single in the UK, reaching No. 8. It was not a pop hit in the United States, but a 12" single featuring a remix of the song appeared on the Hot Dance Club Play charts. The single sold
High- and low-level classification is typically more concerned with individual components within the system and how they operate. Features which emerge only at a high level of description are known as epiphenomena. Due to the nature of complex systems, the high-level description will often be completely different from the low level one; and, therefore, the (different) descriptions that each deliver are consequent upon the level at which each (differently) direct their study. For example, High- and low-level High-level and low-level, as technical terms, are used to classify, describe and point to specific goals of a systematic operation; and are applied in a wide