Training becomes more complex as you approach higher frequency domains. It's not simply a trivial binary search anymore as there is more than a few parameters (

Training becomes more complex as you approach higher frequency domains. It's not simply a trivial binary search anymore as there is more than a few parameters (how fast the clock has to rise, how long you can and must hold clock and data lines for, what order data lines have to be held in, to compensate for speed-of-light lag, etc.)