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A comment on Hist Triggers in Linux 4.7. Parent comment

Re:Hist Triggers in Linux 4.7 by lisivka on Friday June 10, 2016 @06:06AM (#11875335)
So beams must be directional, to avoid sharing of spectrum with all, but only with some.
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Re:Hist Triggers in Linux 4.7 by dmm on Friday June 10, 2016 @10:13AM (#11876464)
A fiber of glass is the ultimate directional antenna.
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Re:Hist Triggers in Linux 4.7 by cyphar on Friday June 10, 2016 @10:08AM (#11876418)
The problem is that broadcasts are exactly that: broadcasting. They transmit in all directions. While you have bandwidth constraints in wires, they're all localised to the wire. Even parabolic dishes (which make getting a signal a huge PITA) still aren't as localised as cables. Wired connections get a bad rap, but they're actually a much more preferable (and scalable) medium for transmission than radio waves.

Not to mention that "bidirectional beams" is another way of saying "noise".

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