[SUPPLY-CHAIN] Good description of supply chain effects
...
'(The chain can involve the coal-based electric power plant, the
transmission and distribution network, the power grid which
depends upon telecommunications, the railroads and their
embedded systems on the train, switches and signals as well
as their application software, for all of the railroad lines that
have to be traveled over from source to destination, the coal
mining companies and their embedded systems and software,
the petroleum companies that supply the diesel to the trains
and who might be dependent upon oil tankers with their
embedded systems and software, the shipping ports both here
and in the OPEC countries, the oil rigs at sea if they are in the
loop, oil wells in the OPEC country, oil refineries, and all of the
electric utilities that supply the electricity to the electronic
switches and signals that the trains rely upon from their source
of coal to Minnesota. If the coal is from Wyoming, where a lot
of the coal comes from, that means a lot of utility service areas
in that railroad route.)
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