“It’s hard to get your head around, isn’t it?” he added. “Geologists have dated the zircon found in this part of Australia back three billion years. Three billion. I can’t even fathom that length of time or imagine what the earth looked like.” Three billion years? “Way too early for dinosaurs.” “Earth would have been nothing but a fiery, volcanic planet, rivers of lava, that kind of thing.” He sighed. “And now here we are, three billion years later, and I’m lucky enough to exist at the same time as you.” I didn’t know what to say. I could barely speak. My eyes and the back of my nose burned,
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