When future scientists learn to ride bikes:

Yesterday, I began teaching Skyler and Aria how to ride their bikes without training wheels. I began by teaching them how to fall properly (what? It's what they do in skiiing!), then we worked on simply maintaining balance in a stationary position on the bike.

Aria caught on quickly (she exhibits a strong aptitude for physical challenges), holding herself completely still while I only occasionally spotted her if she began to tip. Skyler struggled a bit more (he exhibits a strong aptitude for academic challenges...not so much physical), requiring more or less constant support. I anticipated that it would be more difficult for him, just as I anticipate school being more of a challenge for Aria.

I was, however, really impressed with his attitude as he was genuinely trying to figure it out using his personal strengths. He must have recalled one of our previous conversations about his body's sense of balance:

M:"Skyler, I'm SO proud of you! You're really trying and doing great!"

S:"I don't know, Mom. I think there must be a problem with the fluid in my middle ear."