You can't argue that one failure to achieve accurate results mean that it's inherently impossible to achieve accurate results. In this case, it's conceivable t

You can't argue that one failure to achieve accurate results mean that it's inherently impossible to achieve accurate results. In this case, it's conceivable that there could be a tip geometry, tip composition, cleaning technique, normalizing strategy, prick location/depth, etc (or combination of the above) that leads to good data. Of course, that's not a guarantee that it is possible, and it still puts the burden of proof on Theranos (for example) to prove that they have actually overcome this problem if they want to run tests that way. It is mighty suggestive though.