Please tell me I’m not an idiot

I’ve been playing the sims 4 since 2018 and I NEVER realised that the little diamondy thingo over sims heads was called the Plumbob?! IS THIS A WELL KNOWN FACT I’VE BEEN CALLING IT A FUCKING DIAMONDY THINGO

I’ve been playing the sims 4 since 2018 and I NEVER realised that the little diamondy thingo over sims heads was called the Plumbob?! IS THIS A WELL KNOWN FACT I’VE BEEN CALLING IT A FUCKING DIAMONDY THINGO