alt Hacker NewsThey "why" hasn't been answered. I understand the previous statements very clearly. It makes intuitive sense to me, but I want to know more.
Like physics PhD-level more.
They "why" hasn't been answered. I understand the previous statements very clearly. It makes intuitive sense to me, but I want to know more.
Like physics PhD-level more.
I believe the reason is, at the frequencies these CPUs are talking to RAM, the reflection coefficient[1] starts playing a big role. This means any change in impedance in the wire cause reflections of the signal.
This is also the reasoning why you can't just have a dumb female to female HDMI coupling and expect video to work. All of such devices are active and read the stream on the input and relay them on the output.
[1]: https://en.wikipedia.org/wiki/Reflection_coefficient