Back in high school chemistry, I remember waiting with my bench partner for crystals to form on our stick in the cup of blue solution. Other groups around us jumped with joy when their crystals formed, but my group just waited. When the bell rang, everyone left but me. My teacher came over, picked up an unopened bag on the counter and told me, “Crystals can’t grow if the salt is not in the solution.”
To me, this was how science worked: What you expect to happen is clear and concrete. And if it doesn’t happen, you’ve done something wrong.
