# Table 2

Familiar counterparts against the four properties. The values are illustrative, not measured.

| | Person on the web | Person on voice | Screen-reading script | Language-model agent | Tool-protocol client | Feed consumer |
|---|---|---|---|---|---|---|
| Modality | pixels and text in; clicks and short text out | speech in and out | screen structure in; fixed parameters out | text, structured data or rendered pages in; text and tool calls out | typed records in; typed calls out | records in; acknowledgements out |
| Consideration budget | a few to ten items | one to three | exactly what it was built to read | can read many; measured agents still favor what comes first | the whole response | the whole stream |
| Turn cost | moderate | high to list, low to ask | cannot ask | low (it can ask its principal) | low | none |
| Stability need | low | low | absolute | moderate | contractual (a schema) | contractual |