You may find this informative, if you have a couple of minutes to spare: https://encyclopedia2.thefreedictionary.com/Transformation+of+Quantitative+Into+Qualit

You may find this informative, if you have a couple of minutes to spare: https://encyclopedia2.thefreedictionary.com/Transformation+of+Quantitative+Into+Qualitative+Changes https://encyclopedia2.thefreedictionary.com/Transformation+o... (or some other hit on "quantitative change leads to qualitative change")