Update thoughts.adoc

thoughts.adoc

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 === thoughts.adoc
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-Hypothetical Precondition:
+*Proposed event-driven approach to person registry identifier assignment*
+
+Each SoR record fires an event when it detects a person previously unknown to the SoR. The event label is something like 
+'noticedNewPerson' and the message will include the {Sorid} and an SoR-generated unique identifier for that person.
+
+MVService: create subscriber to 'noticedNewPerson'; Its only function is to generate a new internal identifier, link it to the Sorid-assigned unique identifier and persist that info.
+
+- - -
+
+*Hypothetical Precondition*
 
 A person was just now added to a System of Record,
 midPoint has not yet processed this, so has no record of their existence