I notice that older houses tend to have much more massive and finely wrought woodwork than new homes. For example, here is a railing from an early 20th century house:
Notice the elaborate paneling on the floor siding. We can compare this to a typical railing found in a modern McMansion:
Is it simply too expensive to have turned balusters and massive hardwood railings, or is it because the craftsmanship and knowledge to build such railings has been lost? I looked at some contemporary manuals used by carpenters to build staircases before 1930 and they are amazingly complicated with complex mathematical equations and drawings. Here is an extract of two plates:
I got the impression that a carpenter would have to spend years studying this stuff before they could do it. Has this knowledge been lost, or are there still carpenters who can do it?