I read recently that mining billionaire Clive Palmer has been consulting with various people to find out whether it's possible to clone dinosaurs in order to create a theme park resort. It's amusing that someone would cash in on a group of animals that have been extinct so long (I won't argue on whether it's been 5,000 years or 65 million), yet when it comes to the long-term survival of our own species and all that we depend upon, is likely to call it an anti-business conspiracy. He has previously had plans to rebuild the Titanic, a boat that failed.
Here's a challenge to you, Clive - put some money in to ensuring that humans either don't wipe themselves out, or are at least able to rebuild past a cataclysm. Put some money in to developing new technologies, and exploring possibilities, so that not only will these become available, but you can put your name on being the one who made them possible. People outside of Spain don't remember King Ferdinand and Queen Isabella for nothing. The de Medicis are remembered for being patrons to some of the biggest ideas and works in their time.
You only need 1 good idea to be developed in order to justify the 99 that lead nowhere.
Very few of the big capitalists are really remembered - it's the people who were willing to lose a bit of money that we don't forget.
In exchange, well, we'll build, maintain and improve a little getaway, to start-with... and build a much larger system that can support you long term - assistants to pick up after you, technicians to keep things running, other people to fulfil any needs. We will work on new technologies that, if successful will propel humans forward. You could leave an indelible mark on history. Ever heard of fusion for producing electricity? Small experimenters have made more progress in the past decade than major researchers have in five decades before.
Technologies are there that could take us into the universe, people are knowledgeable and solving issues, it's only that we need our King Ferdinand to support us. There are a lot of problems, we just need to have someone help us.
Before anyone else asks what this has to do with prepping or survival PSHTF - everything. There's only so much food you can store - you need to grow your own. If you're going to spend your time underground, you need energy, you need a life support system, you need to find better ways to do things. You need equipment to be reliable, repairable, efficient, and small. You need power to keep things running - no good having four weeks of diesel for a generator if you have to rely on it for eight. There are problems in prepping that can be applied in plenty of other places, one problem ties into another, a solution for one problem solves another.