
No species has ever reached for the stars without the guidance of a patron - except perhaps mankind. Did some mysterious race begin the uplift of humanity aeons ago? Circling the sun, under the caverns of Mercury, Expedition Sundiver prepares for the most momentous voyage in history - a journey into the boiling inferno of the sun.
For another example along these lines, there's David Brin's "Sundiver": https://www.goodreads.com/book/show/96472.Sundiver
The elevator is by far the least interesting idea of these novels which center about a future where we have uplifted (given sapience) monkeys and dolphins. We are also trying to survive in an unkind universe where Earth is a third world political power that is making religious fanatics angry.
Fun fact, in "The Uplift War" (1987!) I found what looks like a reference to cryptocurrencies:
"The money inside was GalCoin, untraceable and unquestionable throughout war and turmoil, for it was backed by the contents of the Great Library itself."
I had enjoyed Sundiver and Startide Rising from the same series quite a bit, but I have to be honest, this one is trying my patience. I like the whole uplift concept, but I'm finding the writing in this one a bit clumsy.