We are 13.7 billion light-years from the edge of the observable universe, That's a good estimate with well-defined error bars, Scientists say it's true, but acknowledge that it may be refined, And with the available information, I predict that I will always be with you.

All that was required to measure the planet was a man with a stick and a brain. In other words, couple an intellect with some experimental apparatus and almost anything seems achievable.

What seems certain is that Pythagoras developed the idea of mathematical logic. He realized that numbers exist independently of the tangible world and therefore their study was untainted by inaccuracies of perception. This meant he could discover truths which were independent of opinion of prejudice and which were more absolute than any previous knowledge.

Romantics might like to think of themselves as being composed of stardust. Cynics might prefer to think of themselves as nuclear waste.

We are 13.7 billion light-years from the edge of the observable universe, That's a good estimate with well-defined error bars, Scientists say it's true, but acknowledge that it may be refined, And with the available information, I predict that I will always be with you.