Brad Sallows
Army.ca Legend
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For the physical network, we're dealing with a natural monopoly. The cost-effective solution is for the ILECs (incumbent local exchange carriers) to build redundancy in wherever redundancy can be built in. There will almost always be some single points of failure, but by my observation those trended to fewer over the past 30 years. Where they can't be removed, backup systems are usually maintained. Getting from cold to hot standby can be a lot of work (money), but when software is involved the rule is "you can do anything in software" subject to "if you control the software" and "some things cost more than others".
For other things, the simplest solution is often to keep the old alongside the new. Touchless taps and flush in washrooms, but still with a mechanical control. Automated doors that can still be pushed/pulled. Cash/cheques and e-transfers. Rail in addition to roads and buses, not "instead of". Hardcopies and softcopies.
For other things, the simplest solution is often to keep the old alongside the new. Touchless taps and flush in washrooms, but still with a mechanical control. Automated doors that can still be pushed/pulled. Cash/cheques and e-transfers. Rail in addition to roads and buses, not "instead of". Hardcopies and softcopies.