Sure, it's hard to test things in real world conditions, but that doesn't mean we should over extrapolate from in vitro findings. In particular, infecting cells

Sure, it's hard to test things in real world conditions, but that doesn't mean we should over extrapolate from in vitro findings. In particular, infecting cells easier in a lab doesn't mean the virus spreads from person to person easier. Besides, the fact this variant hasn't spread much is telling in and of itself! Maybe we got 'lucky'. But maybe it just isn't that contagious, compared to Delta.