Difference between "Next to friendly unit" and "Adjacent friendly unit"

[Autoclave]

What is the difference between these two bonuses? can anybody explain?

 

[Promethian]

"When next to friendly unit" is very different from "per adjacent friendly unit." One clearly indicates the bonus is a binary event based on a condition, you have it or you don't. The other clearly indicates you get multiple instances of the bonus for each instance of the condition.

 

[Autoclave]

so basically per adjacent friendly unit which is 8% will overcome the 20% bonus from next to friendly unit only when you got more than 2 adjacent units. I get it. Thanks.