Is There a Lethal Dose of LSD?

Despite the millions of acid trips that people have taken, it's never been conclusively shown that lsd led to the death of a human being. The minimum dose is a quarter microgram, which is a like, 25 thousandths of a gram,. Some people have taken milligrams of the stuff while accidntally. There was a group in 19 75, an at a party, and they thought they were snorting cocaine, but it turned out they were snorts powdered lsd.