I am trying my hand in PCB designing recently and I came across an article where it offers tip for PCB designing and everything made some sense to me except the below one? The tip goes this way
When laying out PCB’s, make sure all signal references have an individual trace back to the common node. Do NOT daisy chain common reference points. This will result in hum and noise in analog amplifier circuits.
Well am trying to figure out what exactly this statement come to explain, I have tried forum of that site but no response from them. Can you guys kindly help by explaining the above statement in simplified version so that beginner like me could understand them please?