QOTD on Roman Aqueducts & the Power Grid

Design decisions should anticipate changes over time to environmental and system factors, including security. Perceptions often lag reality, and it can be costly to weigh your options or implement changes only after security threats become too great to ignore. Built-in security is cheaper and more effective than trying to retrofit it after the system has already been placed into operation. Once the last brick has been placed, infrastructure design decisions have been 'cast in stone,' and like the aqueducts, are built to last and hence not easily changed or replaced.
The CSO Online article draws many good parallels between the significance of the roman aqueducts' designs and the current efforts to modernize the power grid into a "smart grid".

Src: 4 Things the Roman Aqueducts Can Teach Us About Securing the Power Grid | CSO Online

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