For an exam, they are all just carbon arranged differently—diamond's a rigid lattice, graphite's slippery sheets, and fullerene's a football cage. But buying these overpriced guides, I see another difference: one is marketed as forever, one writes the marketing, and one is a fancy new promise no one needs. It’s all the same stuff, just like land here—whether they call it a view, a homestead, or an ‘ecotel’ depends on who’s selling.
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