I programmed FPGA years ago. They are still limited, even in 2018. But I imagine in the future as the use case becomes stronger, the technology may improve massively and become cheaper and more common.
Just look at external GPUs for laptops. If you told people 10 years ago it would be a thing, they'd call you mad. Same with Crypto Assets, most people didn't see Bitcoin coming, and even when it was in its first years people still bought a Pizza for 10,000 BTC because even though they knew how the technology worked, even they couldn't fathom how valuable the tech and the currency would become.
Personally, I keep an open mind so nothing is shocking to me. I wasn't even shocked when Trump got elected, even though it was presented as a joke in various media such as The Simpsons and other comedies (or perhaps as a hidden warning ;-)).
I totally expect we'll eventually be able to copy the human brain into a virtual environment, extend the life of our organs (or replace them entirely), and reach planets in other systems, it's just a question of time.