I’m always amazed at how the ancients were able to dig with primitive tools as much as they did.
Not just the ancients, either. Building the first transcontinental railroad through the hard granite rock of the Sierras, before plentiful hard steel, before dynamite, before diesel equipment. It was built in six years. During a war. 1,776 miles of track. $4-$5 billion in 2026 dollars.
Its called slavery...
I hope they didn’t send in a team of Italian divers...