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That reminds me of the Hook Flash in telephony for getting an operator's attention: https://en.wikipedia.org/wiki/Hook_flash#History https://en.wikipedia.org/wi
by userbinator 1y ago
That reminds me of the Hook Flash in telephony for getting an operator's attention: https://en.wikipedia.org/wiki/Hook_flash#History https://en.wikipedia.org/wiki/Hook_flash#History