How old is the Earth?

[Welsh cake]

How old you think the Earth is.

Why you think this.

What presuppositions you had before examining the evidence and making your conclusions.

1. The exact age of the Earth hasn't been determined yet, it's difficult to calculate from the planet's accretion disk and from the oldest rocks found on the surface, but based on evidence from radiometric age dating I would say it's at least four billion years old or so.

2. We have the math. Radiometric dating is still of one of best-known techniques used to establish geological timescales.

3. I make no concrete conclusions here because the exact age of the Earth has yet to be calculated. Scientific research never stops and the process is still being refined to pinpoint an exact measurement.

Using Old-Earth presuppositions to justify Old-Earth presuppositions....classic! Well people who say you cannot prove the Big Bang unless you were there to observe it are correct in a manner of speaking. If your definition of "proof" is at the emperical level then they are correct.

They're not correct in any sense of the word, they're as foolish as those who say you cannot prove Pluto takes 248 years to orbit unless you live that long to observe it orbit the sun once. We have statistical evidence and empirical analysis, this celestial body conforms to the laws of physics and astrodynamics. We have the math, and from the results of methodical investigations and measurements can we determine how long the minor planet will take to orbit without witnessing it.

They're eager to forget there's more than one type of evidence.