Ted Grant's perspective that the seemingly endless boom of the post 2nd World War period would actually end and 'be followed by a catastrophic downswing, which cannot but have a profound effect on the political thinking of the enormously strengthened ranks of the labour movement' must have seen like madness to some at the time. However, as we have seen, the Marxist analysis has been proven to be more than correct in predicting the continuing crisis of capitalism over the last few decades. The text of 'Will there be a slump?' remains even today an excellent riposte to all those who thought that capitalism could by magic avoid crisis and enter a period of non-stop plenty. Its explanation of the true nature of capitalist crisis could have been written yesterday.