There is more than one kind of thought. There are thoughts you cannot complete within a month, or a fiscal quarter, just as there are thoughts that can occupy less than a vacation period, a weekend, or a smoke break. Like the spectrum of photonic behavior, thoughts come in a nearly infinite range of lengths and frequencies, and always move at the exact pace of human life, wherever they are in the universe. Some thoughts are long, they can take years to think, or a lifetime. Some thoughts take many lifetimes, and we hand them off to the next generation like the batons in a relay race. Some of these are the best of thoughts, even if they can be the least productive. Lifetimes along, they shift the whole world, like a secret lever built and placed by the loving imaginations of thousands of unproductive stargazers.