Agreed. Moreover, the physical size of the device will grow exponentially with problem size, so manufacturing will be impractical. The device is small only for simple instances of the SSP. But for those instances you could simulate the device in a few lines of code on a classical computer :)
In fact, this device is based on earlier work on a biological computer [1] which suffers from the same drawbacks [2].
In fact, this device is based on earlier work on a biological computer [1] which suffers from the same drawbacks [2].
[1] https://www.pnas.org/content/113/10/2591.short (discussed https://news.ycombinator.com/item?id=11186640 )
[2] https://www.pnas.org/content/113/23/E3187
EDIT: it is _really_ neat engineering though. EDIT2: Old HN link & grammar