It may be the reason some ADFs like Embeda go unchallenged Padin. Besides the fact that street junkies and dealers have zero impetus... the cost would IMO be prohibitive.
I suppose one could get lucky in synthesizing the next Kevlar or Polytetrafluoroethylene (PTFE) aka Teflon DuPont trademark. A street junkie could get lucky by taking sky diving lessons and letting aerodynamic separation take its course.... but I highly doubt anything of the sort will happen.
Unless some young gun from MIT does this as a sideline just for laughs and giggles I highly doubt a cheap means and simple solution will be obtained to compete with street drug prices.
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