What's wrong with bootcamps

Want to learn about X? Let's have a teaching bootcamp!

The attraction is clear: give me a short block of time—a day, or a weekend, or a week—and everyone will be up to speed on X.

The problems:

• Because the teaching occurs during a block outside of normal work, there is no time to integrate the learned material back into their normal workflows.
• It violates everything we know about spaced practice vs massed practice. Hermann Ebbinghaus published about this in 1885, and we seem to keep forgetting it.
• What people imagine: "This will be great". What actually happens: (after the second or third hour) "My brain is fried."