Modern education frequently teaches disciplines in isolation even though the problems graduates eventually encounter are not isolated.
The mismatch
A programmer may spend years learning computing without meaningful exposure to the industry in which the software will eventually operate. Builders may learn technique without geology, economics, law, or systems thinking. Thinkers can graduate having built almost nothing.
A different environment
Put the disciplines together around real work. Let tradespeople, scientists, engineers, technologists, economists, designers, and philosophers encounter the same physical problems from different directions.
The test
Don't begin by designing a perfect university. Create a small environment where interdisciplinary teams must actually solve something together, then observe what kinds of learning emerge.