I've been aware for at least two decades of a variety of escaping schemes. There are a lot of subtle and important trade-offs in terms of usefulness to humans, correctness, robustness, compactness, simplicity, etc.

Knowing as I do that this is a tricksy area where care and circumspection are required, it annoys me that so many systems routinely get it wildly wrong.

Which in turn creates a natural pun with Santayana's principle that those who cannot remember the past are condemned to repeat it.