To: pater tenebrarum who wrote (57395 ) 1/11/2001 11:16:55 PM From: Don Lloyd Read Replies (1) | Respond to of 436258 hb -...incidentally, a prominent optimist/bull on the LW forum, Eric Baranov, argues that the next big step forward technologically should involve an entirely NEW energy source - something along the lines of cold fusion. ending the dependency on fossil fuels. of course he's merely speculating, but IF such an innovation became available, it would certainly bring about a golden economic age. ... I don't think so. The infrastructure that has evolved to supply the economy's energy needs in a number of forms is very efficient, even if it often seems excessively fragile. The limits to its efficiency and robustness are most often the results of political choices. If you were to compare the overall economic costs of energy supply to the entire economy, it might be 15% at most, far less than the costs of taxation, for example. In this light, even a perfect, costless energy source is limited in how much improvement it can provide, even if we ignore the destruction of the capital that is embedded in the present infrastructure and the additional capital investments that must be made to support the new. If you invent the lemon, its use is not a simple matter of incremental improvement of the processing of apples. You must first retreat from an economic fitness peak that has evolved to efficiently exploit apples, and then begin an entirely new lemon exploiting infrastructure which can evolve to its own fitness peak. If it is not clear from the beginning that this peak may significantly surpass the old apple peak, the process will never proceed beyond the point of risk evaluation. Regards, Don