It's reasonable, yes. My point is though, what you're doing is
  akin to rounding down to zero possibility. Here's why this
  matters (to me): In the history of humanity and the Universe,
  statistically, I'm dead. I don't exist. I'm rounded to zero.
  But, as it turns out, I AM here. So, I'm not hasty in rounding
  to zero or one, and I avoid going to concepts as impossible. I'm
  not saying that outlook is for everybody, I'm just speaking for
  myself which, ultimately, is all i *can* do. Even there, I'm
  only speaking for a part of myself but it's the best I can do.
  == Ok. My lifespan is about 84-88 years if I'm lucky. I know
  this from my genetics and also hope. It could also be 44 years.
  [I could be dead in 2 minutes]. I could live longer or shorter
  than any of these predictions. However, the Universe is, what 14
  billion years old? I don't exist from the perspective of the
  whole Universe. In the perspective of the time humanity existed,
  I was never born. In the perspecive of the likely length of time
  of humanity (I'm expecting many thousands of years more), I will
  have been dead for a very long time. So, my time is now and here
  at this point in human history and in the history of the
  Universe. But if MY lifespan was placed against either
  humanity-a-a-whole or universe-as-a-whole, I either don't exist,
  wasn't born yet, or I'm dead. Yet, I'm still here. That is what
  I mean. In statistics, outliers are removed. You say that it
  could take several lifetimes to know everybody on the planet and
  that it stands to reason that it's impossible. Yet, how much of
  someone needs to be known? Is a name enough? Gender? Their likes
  and dislikes? Depending on how little is "enough", you can know
  humanity statistically. Or you can sit down and read through a
  list of 7+ billion names and faces scrolling by as quickly as
  you can process them and you can get to know everybody by name.
  So technically, it's not impossible to know everybody at some
  level, although it's a huge volume. == I do this on a regular
  basis. I have a lot of followers on Vine. For my 10,,000
  follower, I tried to capture all 10000 in a single Vine to say
  "Thank You". I'm not sure how many I ACTUALLY captured, but it's
  fast enough scrolling by that's impossible for a human finger to
  catch a name as it scrolls by within the same window, so it's a
  lot. [1]https://vine.co/v/expDganjjPO I like thinking I caught
  all 10000, but I suspect at 30 frames per second, 10 names per
  frame, 6.8 second total length, it's more likely I caught about
  2000 names. Regardless of 2000 or 10000, I know EVERY ONE of the
  people on this list. I've seen their faces, I know SOMETHING
  about their personalities, who they are as a person. This isn't
  even that many. I had 27,0000 unique visitors when I ran a
  Minecraft server a few years ago. I was aware of their names and
  what their characters look like for most of them, and talked to
  thousands of them over a 25 month period. I don't know how many,
  but I could check log files. So, maybe that's not everybody.
  Maybe it's not millions. Maybe it's not billions. But I don't
  think it's unreasonable to say that it's impossible to get to
  know everybody (at some level), but it would take some
  dedication or cleverness. == I personally don't give ontological
  status to statistics, but I know MANY people who do. So, I am
  acknowledging that possibility. == You say my sample isn't large
  enough for a [set] of [humanity]. Yet, what is a [set] of
  [humanity]? Are you trying to capture every person who ever
  lived for all time? Every person who is living today? Or,
  consider this possibility: The [set] of [humanity] extends only
  as far as my view point and experience goes. The set of
  [humanity] for me, for example, would contain, if I had to add
  up people, probably several hundred thousand people I've been in
  contact with in my lifetime so far, enough to decide, "this is a
  good person" or "this person has issues". Maybe 250,000 or so.
  I've been online since 1989, so it's not an unreasonable number
  for me and it's likely more. Then there are people I was exposed
  to on TV and in the movies, books and stories and such. So, as
  far as I'm concerned, this "set of humanity" extends that far
  and no further. The rest are "unknown known" or "unknown
  unknowns" to me. Not unknowable but unknown to me right now. So
  when I speak of "I love humanity!" I'm speaking of the set that
  I know enough to say. I'm also speaking of presumptions I have
  of humanity, looser readings of history, including my bias
  towards it, which can encompass much MORE of humanity. Of course
  these are also projections of my own personality upon "the
  history of humanity" but not exclusively so as I _do_ have
  reasoning capabilities. So, consider the "set of humanity" to be
  a personal, relativistic set vs the "I hate people" being the
  personal relativist set containing people in my physical
  presence that are annoying to me at that moment. I can love the
  "set of humanity" that I am aware of while not liking those in
  my presence all that much. A subjective data set. == I "ate up"
  relativity as a teenager. Loved it. Made total sense to me. They
  should teach it from the earliest school grades onwards. They
  don't, because we *still* persist with the "objectivity"
  illusion and it colors the way we educate people generally. It's
  a shame because once you can acknowledge the subjectivity of
  objectivity AND be able to enumerate it at some level, it's a
  true freedom. I don't have to speak for every person who exists.
  I just have to speak for myself as objectively as possible from
  my subjective perspective and let the person I'm communicating
  with decide whether my perspective has universal applicability
  or not. I assume my subjective perspective is not universal,
  although of course I hope it is. But, then again, I'm weird like
  that. == 'm skeptical but not a classic skepticist. I'm also not
  an "everything is relative" person either. There are some things
  you can plant a firm basis upon. == I trust my reasoning
  capabilities but I know they're not perfect because the
  cognitive systems in the brain seem to show that the amygdala
  has greater influence upon the prefrontal cortex than the
  prefrontal cortex has over the amygdala. People with damaged
  amygdalas have been called "living economists". They are as
  close to working with "pure reason" as one could expect. The
  result? They cannot make the simplest decisions. They can spend
  MONTHS deciding over the simplest things. So, I trust my
  reasoning but not exclusively. I trust logic yet not exclusively
  so. It has flaws built in to it from the beginning, from its
  roots. Every system seems to have flaws in it. This doesn't mean
  they are to be rejected. But rather, acknowledge the flaws of
  the systems while also utilizing them. ==

References

  Visible links
  1. https://l.facebook.com/l.php?u=https%3A%2F%2Fvine.co%2Fv%2FexpDganjjPO&h=CAQF8loeG