Kinda, but also there's stuff that we need to learn new physics for, like FLT travel.

We can create some math saying it's technically possible, but we have no idea how to create the things we need to make it work.

Then there's hibernation. We see it in some animals, but we need to know new things about biology to make it work in people.

There are many categories of "possible" and some of them mean we just need enough people working on it. And some of them mean we need to learn new fundamental science to be able to even start to understand what it takes.