Josh Izaac

> The idea of registering callables instead of MeasurementProcesses in QNodes is pretty cool, but I don't think it would be very maintainable... @dwierichs I'm curious why you think this?...

Note also the discussion here, which is somewhat related: https://github.com/PennyLaneAI/pennylane/issues/2563 Although, this is maybe slightly different; rather than converting `qml.Identity(wires=[1, 2, 3])` to `qml.Identity(0) @ qml.Identity(1) @ qml.Identity(2)` like the...

Maybe a module name that indicates that these are 'meta' operations? That is, they use the `Operation` abstraction but aren't actually operations in the theoretical sense

> If the `qml.transforms.batch_params` decorator is removed, the issue stays. This gives reason to believe that the issue is with the newly introduced parameter broadcasting. @eddddddy given that `batch_params` does...

Thanks @emgilfuster! This is because `tutorial_tn_circuits` is not listed in the ToC for the `demos_qml.rst` page: https://github.com/PennyLaneAI/qml/blame/master/demos_qml.rst#L134-L153 We should probably go through and audit, and ensure that all demos are...

My first guess was that this was a non-executed demo, but it looks like it _is_ executed 🤔

Might not get a chance currently! Will pencil it in as a todo. I wonder if this is related to @co9olguy's numerical accuracy issue. @glassnotes, if you run the PL...

Hey @glassnotes, is this still showing the incorrect result?

😬 😬 😬

Looks like the CI is using Python 3.7.2. If the demo doesn't set a seed, it could be due to the CI running _all_ the demos, resulting in a 'better'...