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by mikeash 3788 days ago
I don't know exactly why these ports aren't protected, but as for your second question, why assume there are only four wires, given there are a lot more pins? Wikipedia has a full pinout and wiring list and you can see there's a lot more going on than that:

https://en.wikipedia.org/wiki/USB_Type-C#Connector_pinouts_a...

USB-C is not merely a new connector for the old USB 2.0, but includes a lot more. It is backwards compatible, but goes well beyond that.
1 comments
Arnt 3788 days ago
Why assume that, indeed. The salesman who sold me my lovely new macbook told me (when I said something skeptical about quick charging via a thin cable).

Feel free to vote me down for believing something a salesman said.

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mikeash 3788 days ago
That'll learn ya.

(For the record, I didn't downvote.)

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