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@bmdrocks21
I am not quite sure of why it takes this long. It could be incompetence, as typically happens in government bureaucracies, or it could be that trials take long periods of time.
Actual scientific results take a lot longer than just about everyone not intimately familiar with it tend to assume. You have likely heard the ridiculous and ignorant joke "Fusion is just ten years away, and always will be". In other words fusion must be impossible because if it was possible we would have it by now because they keep hearing that it is coming soon. That is another example of people having unrealistic expectations of research timelines because they lack understanding of the processes taking place behind the curtain. Nothing to do with economics or red tape or society, just how things are. It is unavoidable. This is another thing I would not mind discussing in another thread so as to avoid detailing this one.