Since this is the general section, let me start by pointing out that your assumptions are a little off. It wouldn’t take 100 years to get to Mars unless we did it the hard way on purpose. Further, as this engineer and author (who is also referenced in the linked Journal of Cosmology article) explained 15 years ago, getting to and living on Mars is much easier than many of us might think and doesn’t require anything more than technology that’s already developed (as of 15 years ago). Thirdly, as our own @mattbrowne has elaborated quite stylishly, generational starships will probably be disfavored over cryogenically stored embryos brought to life via artificial incubators or some other technology-based solution.
The only other thing I’ll add is my personal belief that all this crap is smokescreen. If you read the last two paragraphs of the Kurzweil blog referenced in your article, they talk about “airships” and “tesla in the air.” Once upon a time, those were called blimps. Tesla’s technology is more or less 100 years old. We went to the moon with the computing power of a pocket calculator and haven’t been back in 40 years. My point is that there’s likely some group already doing all of this stuff in secret, and this article and others like it are more about stringing the rest of us along.
It takes about 18 months to get to Mars using a hypothetical “standard” rocket ship and taking advantage of orbital windows. Would I go on a one-way trip? Doubtful. I imagine the type of person to go would be the same type that would go to Alaska or the Florida Keys or somewhere else out of the way of civilization, but I’m sure those folks wouldn’t meet the criteria that a selection committee would devise for such a mission.
Given a generational starship is likely doing it the hard way, I wouldn’t do that either, and it seems like folly unless that was the experience someone wanted akin to living on a boat.