Wasn't stoned, Rooi.
Just made a quick post to warm up the fingers before I started work.
Been on an ancient engineering kick lately and remembered that you said most ancient megalithic structures could be explained by mass labour over much time.
The work in question here is not massive, did not require a huge labour force and would not have taken years to complete. Rather, the focus is on precision.
When I said "an easy one" I meant the question/task was easy to understand.
Anyway, there are two ways in which precision would come about. The first is a requirement for precision in terms of function, like gear teeth needing to fit perfectly. The second is when the tool used is so precise that extreme precision is natural consequence of simply using the tool, like drawing a circle with a compass.
The object in question here is a sarcophagus.
That begs the question, why would such precision be required for something that someone was simply going to be laid to rest in? It points to the second explanation for precision, that of precise tools creating perfect work. See where I'm going with this?
The difference between my question and yours is that mine refers to existing ancient pieces that are a true mystery while yours is kinda meaningless. I'm sure you'll agree.
In summary, I quite thoughtfully attempted to question your mass labour force over time explanation with an ancient achievement that displays extreme precision instead.
I know you're not an engineer and all I'm doing is making some conversation on an interesting topic.
Again, I'm sure you'll agree that it's better than being at each other's throats endlessly.
Would you like me to refrain from doing so in future?