Perpetual revolutions in technology can mean the devaluation of fixed capital on an extensive scale.
David HarveyWhat sets imperialism of the capitalist sort apart from other conceptions of empire is that it is the capitalist logic that typically dominates, though ... there are times in which the territorial logic comes to the fore. But this then poses a crucial question: how can the territorial logics of power, which tend to be awkwardly fixed in space, respond to the open spatial dynamics of endless capital accumulation? And what does endless capital accumulation imply for the territorial logics of power?
David HarveyWe're supposed to live under capitalism, and capitalism is supposed to be competitive so you would expect that capitalists and entrepreneurs would like competition. Well, it turns out that capitalists do everything they can to avoid competition.
David Harvey