And what if there are? We have passed peak, essentially, everything. All of the easily-obtainable metals, fuel, and other unrenewable resources have been used up. That is why we have to make use of fracking, deep drilling, and high tech to acquire more.

Any survivors of a cataclysm are going to be unable to ever begin another industrial revolution. They will never be able to jumpstart a technological civilization again. The industrial revolution was one-shot because we literally had coal and metal laying about in streams or just under the dirt of a hill. That's all used now.

That means living like Amish, farmers, and nothing more, until the sun expands and devours the earth, sterilizing it forever. No space, no colonies off-world, no more computers, no more televisions, no more video games. Just hard work, short lives, and early deaths, for however long Man exists. No future beyond just being an agricultural animal who can only curse your generation for the end of all hope.

The 13th century, for the rest of the human experience. Serfs tilling soil, and nothing more, not ever, period, amen.

That is not worth surviving for. That is literally a dead end.