Fractal brain: neural ensemble tree replicated in dendritic tree?

[bkaz]

Things like fire-separately, wire-together, for neuron-interneuron synapses?
Recent discussion comes to mind:

Neurons’ “antennae” are unexpectedly active in neural computation

Great, thanks Gary. But it’s weird that back-propagation is to remainder of the tree. It implies that adjacent but not spike-causing synapses are potentiated. Fire together, wire together would be reinforcing the spike-causing ones.