I played it for my 7 year old, it went into her requested song rotation for a good 6 months. Its just a classic!
I'm not saying it's not a good song, or only appeals to older people, just that the probability distribution for a person's age adjusts upward (a lot) given the prior of liking that song :-)
Don't ask the question, just give the answer: we will be alive (I mean there's no other way, is it ?)
Definitely, I have no doubts we will be alive.
I was hinting a bit to the lyrics of the song 'In the year 2525'.
Definitely no other way, because if woman cannot survive nobody will be around to painstakingly increment a counter each time the planet falls around its central star.