I like the analogy.

For all we know, our current state of brain analysis is a blind person sitting in a house, trying to figure out if it will rain tomorrow.

The task seems impossible, though an astute individual could possibly make some accurate prediction based on information that seems invisible to most. However impressive this skill, it would be nothing compared to modern meteorology and its vast array of thermometers, barometers, radars, satellites and dozens of other measuring tools. A few hundred years ago it would have been sorcery.