we are going to need

In the following context the writer is talking about two different kind of experiments: experiment A which is not possible now and experiment B which is possible and uses voltage-sensitive dyes. That said, does the highlighted sentence say:

1.experiment B is a fine and precise experiment for itself and this is the kind of precision that we need for experiment A that is still not possible.

or

2. experiment B is a fine and precise experiment that has made it possible to characterize how neuronal assemblies relate to consciousness.

" we are going to need" is what makes me confused. I do not know if it is referring to the precision needed for experiment A or it is simply referring to the capacities already made possible by experiment B.

Context:

I suggest that there is no magic ingredient in the brain that mediates consciousness. A critical factor could be the number of neurons that are corralled at any one time and it is the extent of these assemblies that will determine consciousness. The most valuable approach would lie in brain imaging in conscious volunteer subjects as they were undergoing different tests that one could predict would modify their neuronal assemblies in certain ways. But at the moment the time and space resolution, although awesome in what has been developed over the past ten years, is still not sufficient. At the moment, only voltage-sensitive dyes showing up areas of activity in response to an epicentre can be used – and then only in experimental animals. By virtue of the fine temporal resolution available from their use, such studies show, for example, that a second assembly will not form because the first is acting as a rival. That is the kind of precision, the sort of timing we are going to need to characterize how neuronal assemblies relate to consciousness.