[TigersEye]

But before you roll out the red carpet for aliens, it might be worth noting that straight lines aren't impossible in nature.

That's true. And two straight lines that intersect in a perfect 90 degree angle probably aren't impossible in nature either.

[Jonty30]

While nothing is impossible, nature tends to favor round corners.

[L,TOWM]

LOL == kind of like the DNA sample

“1 in 2 Billion, sir.”

“Sooooo.... 2 or 3 other persons, that are NOT the defendant and alive right now could have produced the sample tested?”