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Not quite. It would require a massive investment on top of the current 5G deployment.

Replacing fiber, cable, or DSL with 5G in dense urban and suburban areas is definitely not what is currently under development.

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The wireless distribution layer is really the only place mobile carriers are meaningfully bandwidth constrained. It's (relatively) easy and cheap to 10x or even 100x bandwidth available at a tower. The hard part is delivering that capacity to the end user. That's where 5G comes in.

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