| Clue | Source | Date |
|---|---|---|
| Arriving immediately, in future stories | Newsday | 07 Aug 2021 |
| Futuristic travel method (which explains how the last words of the theme answers got there) | Wall Street Journal | 06 Aug 2020 |
| Futuristic travel method | New York Times | 23 Mar 2019 |
| Futuristic travel method |