The evidence we have for this is:
- Since Parson is surprised by things popping into existence, we can assume it is a continuous world rather than a digital world like Erfworld.
- Parson needs to learn the rules of magic. This implies that the various forms of magic in Erfworld do not exist in Parson's World, or if magic exists, that it is significantly different from what he is familiar with.
- Parson had pizza stains on his T-shirt, implying the existence of fast food and free enterprise (also supported by his statement refering to his employment at Kinko's).
- More importantly, this implies that people and things are not cleaned at the start of each day, as they are in Erfworld.
- Parson was a Game Master of a Role Playing Game, and has shown experience with gaming with miniatures. This implies gaming as a leisure time activity. The existence of leisure time implies an automated society, or at least one that has gone through an industrial revolution.
- The Internet exists with many noticeable similarities to the real world - Parson writes a webcomic, and mentions Youtube in LIAB 45.