My trust is based on EXTENSIVE testing. Calibration sessions of over 5000 patches and deep comparison. Start putting probes on screens and checking your correction thoroughly and you too will start doubting stuff... also, you can not probe metamerism or different technology perception. Sadly, probing, being a VERY important part of the process, it's only one part of the calibration and monitor matching process. And as much as I would looooooove for all of it to just be hard math, there is a component of perceptual matching and adaptation.