Well, that "something" came directly from Follica's own study, and the "X" was 25 hairs per cm^2. A healthy head has somewhere between 124 to 200 hairs per cm^2 (
https://www.ncbi.nlm.nih.gov/pubmed/10417585), which means that 25 hairs is roughly 1-2 NWs, depending on your natural density. So, it's backed up directly from Follica's own
data released thus far. I suppose we could assume they've achieved better results, but that would truly be making things up.
Well, all available protocols thus far have proven to be more effective for lower NWs; all the science thus far has shown us that it is easier to keep hair than grow it. That doesn't mean Follica is "useless," only that it probably follows similar efficacy patterns; the more hair you have, the more you grown, and the more resilient your remaining hairs are. Granted, that is an assumption, but one informed by previous research, and if Follica could transform NW7's to 0's, they probably would have said as much (or at the very least alluded to it). Instead, the only hard data they've released are those previously discussed above, gathered from men 18-40 with NWIII-IV. They must have chosen those parameters for the cohort for a reason, the most likely one being they didn't feel they would have gotten great results from older, higher NWs.
Because there are limitations to the body's healing response. One can lose the tip of a finger, but with the right care and application of healing agents, it's possible to fully regrow it. However, the same can not be said if one loses the whole finger - the body cannot regenerate that much and that complex a structure - we aren't lizards.
No, not that it's incapable, but, again, the slick areas of NW2-3's are relatively newly slick, and thus more receptive to the intervention. If you're a NW7, and you followed a traditional pattern of loss, the areas that have been slick the longest are those that go first - the temples and and the crown.
Again, there
is reason to assume this, because that is what the research has shown us thus far - the longer your hair remains miniaturized, the harder it is to revitalize it. While Follica's hair is De Novo, any synergistic effect those new hairs will have on the miniaturized hairs surrounding them will be limited if they have been in that state for a long time. And if Follica can only achieve 25 hairs per cm^2 - and they have yet to give us a reason to believe they can do better than that - then covering a high Norwood with hair is unlikely.
Follica's own data says otherwise; the only data they've released re. grown hair is the 25 number. In a sense, either opinion is uninformed, as we don't have all the data, but of the data we have (and from what Follica has said), it's far more likely that this won't grow 100k hairs. That being said, two NWs is nothing to sneeze at - nothing short of a transplant or a 95th percentile response to finasteride/min can produce that sort of result. And if they can develop novel compounds that result in better gains than minoxidil, then anything is possible.