For New Truthseekers: The Defination of "Discoverer"
Dr.PAC(@Truthseeker ,the first and leading Truthseeker) sometimes metioned "discoverer" in his posts, eg. "Discoverers can post their preditions" or "Discoverers can earn a forum medal". The defination of Discoverer is wrote in the rule of Tessellation, but it seems that some newcommers just ignored the rule(BUT HOW CAN YOU?), so I want to mention it again here.
In the Tessellation, Discoverers (of a certain tessera) means the first 3 agents from EACH FACTION (totaly 6) who correctly submitted their screenshot in the correct post at valid time. Specially, the first of all is called the First Discover.
Only the first 3+3 agents.
You are not a Discoverer just because you posted the screenshot correctly. You must be the first 3 of your faction and not edit your comment (in at least one tessera post)to be a Discoverer.
The most simple way is to look at Dr.PAC's comment. If he mentioned you to submit a prediction, you are one of the Discoverers of this tessera. Or, you are not.
And only Discoverers(the first 6)can submit predictions. Non-discoverer agent can also comment like a prediction, but will be ignored.
Edit: Thanks @ArkFang of remindering me not the first 6 but the first 3+3 from both faction.