Most humans want to "live forever." Given that we can't do that, we resort to procreation, and leaving behind some pieces of ourselves to be remembered by, with lots of cultures having some type of funeral practice to ensure this occurs (i.e. tombstones).
With the proliferation of our digital lives, many of us have more photos, videos, and other media than we know what to do with. Furthermore, we probably don't have a great way to preserve this information.
Imagine a funeral service that could comb through your digital life, archive it all, and keep it accessible to your family for generations. Bonus points for summarizing it into a beautiful montage to be played to your family at your service.
Financially, it would work a lot like how funeral homes operate with deposits, insurance, and annuities, but the marginal cost should be much lower due to it being a digital vs. physical product.
One of the problems I've been mulling over is the fact that digital storage isn't perpetual, which means that someone has to ensure the data is maintained in some way.
Therefore, something like the quartz glass storage medium in the article would be perfect. Your data would be accessible via traditional means for 10-20 years after your death. Afterwards, it would still be accessible, but it would be on cold storage, so it wouldn't be instantaneous. It would mean you'd "never really die" since any of your descendants would be able to see what your life was like.
I think that would be enough of a "hard problem to solve" to build a startup around. Of course, you could extend it to preserve other forms of data, like your DNA, or your mind like Westworld, where your descendants could communicate with you whenever you wanted.
It could easily become one of the first perpetual corporations.