Change your role in the theoros (theatre/theory) tradition.

Get rid of the sense of sight.

Speculate about the world with your eyes closed.

Keep your imagination open to the past and future.

Now:

Look at any surface around you. Now, imagine licking that surface.

Can you guess its texture, temperature, smell, and taste?

Surprisingly, you probably can. This awareness comes from your vast collection of past experiences, which you project into the future through your imagination.

Essentially, imagining is a form of speculative thinking.

Imagining is (also) blindly speculating.

This will allow you to time travel without moving.