[sspiff]

I'd say D-wave is at least as dubious as Mill Computing.

[zeit_geist]

I agree but only due to my lack of knowledge in both areas -- and I only have second knowledge by attending a talk of a former D-Wave user and "programmer". That is, and contrasting Mill Computing, D-Wave has implementations in the field.

[wsha]

I'd put in Rigetti Computing in the same category as D-Wave (I'll let you decide how dubious it is).