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Wifi would have to go to Steve Jobs :-) Lucent was sitting on 802.11 (WaveLAN) for ten years selling super expensive products targeting niche markets and it took Apple to move things forward. More in “Oral History of Arthur “Art” Astrin”, wifi pioneer: https://youtu.be/Tj5NNxVwNwQ

From 1990, the 802.11 standards body was gyrating on radio-based 802.11 ideas.

That body would not even have existed without Ethernet.

And Ethernet may not have existed without work of the ALOHAnet:

* https://en.wikipedia.org/wiki/ALOHAnet

Ideas feed ideas, giants/shoulders, etc.

Give it 30 years. And the one wouldn't be there without the other.

WiFi would definitely be here now with or without Ethernet.

Wireless (packet/frame) networks were around before Ethernet:

* https://en.wikipedia.org/wiki/ALOHAnet

And Metcalfe was inspired by ALOHA, which he readily admits.