| 71 | Rollback by Robert Sawyer - Part 2 2018-09-28 |
Play |
| 72 | Rollback by Robert Sawyer - Part 1 2018-09-28 |
Play |
| 73 | Factoring Humanity by Robert Sawyer - Part 5 2018-09-06 |
Play |
| 74 | Factoring Humanity by Robert Sawyer - Part 4 2018-09-06 |
Play |
| 75 | Factoring Humanity by Robert Sawyer - Part 3 2018-09-06 |
Play |
| 76 | Factoring Humanity by Robert Sawyer - Part 2 2018-09-06 |
Play |
| 77 | Factoring Humanity by Robert Sawyer - Part 1 2018-09-06 |
Play |
