> I think what we really need is strong, mandatory warranties for everything. Maybe, but laws so far are slow and being circumvented in some areas of significa

> I think what we really need is strong, mandatory warranties for everything. Maybe, but laws so far are slow and being circumvented in some areas of significant commercial interest. Maybe some technological approach could be better. A crude example - we already have more and more available spectrometers, which can analyze surface composition of many things, from which some properties can be estimated; of course, it's a long way to "quality meter".