[rorykoehler]

He has specifically said they are making smaller tunnels to dig faster and will use transportation tech that fits in smaller tunnels to take advantage of this efficiency. I think many industries could benefit from this kind of thinking. "Because that's how we've always done it" is a great way to stagnate

[eric-hu]

I think the grandparent is nitpicking the "faster" claim here. To make your comment more specifically address that, Musk isn't claiming to have technology that can bore 10x more volume than competitors. He's reframing the market needs from cubic volume bored to distance bored.