Evidence from the analysis of genetics (e.g., DNA) indicates that most physical variation, about 94%, lies within so-called racial groups. Conventional geograph

Evidence from the analysis of genetics (e.g., DNA) indicates that most physical variation, about 94%, lies within so-called racial groups. Conventional geographic “racial” groupings differ from one another only in about 6% of their genes. This means that there is greater variation within “racial” groups than between them. I've never understood this argument. The same could be said about computers in terms of performance. Laptop and desktop computers have much more variation within their groups than between them. Some laptops are extremely low-power and perform worse than desktops from a decade ago. Others, like top-of-the-line Macbooks, are true beasts that surpass most desktops even today. On the average, laptops are somewhat less powerful than desktops, albeit much less so than the variation in their respective groups. But I don't see how this invalidates the distinction between laptops and desktops. It is still completely reasonable to assume that any given laptop has lower performance than a desktop computer.