No.
You didn't understand my post.
When you send the events (click the 'send' button at the bottom) it checks the events to see if they have the input "OnOwnerDeath". If they do, they store that brick in a simset.
This way, the simset is the only thing looped through. It could have a limit, and there wouldn't be too many bricks in that simset anyways.
No 20,000 brick loop.