@nonoise oh wow. You can’t admit you are wrong ever so you continue the personal attacks? So, at 1:41 he clearly states that the backplane is the ground plane, with the channels being clean, he reinforces this at 4:20 what he called ground plane these channels go from the SFP to the CPU.
I know it is a lot, these things call facts. And I would really advise you stop projecting and advertise that you have issues with pills. Taking more when you face facts won’t help.
and what about the electrical jitter? Isolation gadget? And so on. Not enough meds to handle all that?