I came because my nephew kept saying account and I could not tell whether he meant a bank account. By the third Tuesday I could point to owner, lamports, and data on the card. The pace was brisk, and the rent sitting felt short. I wanted another week on the arithmetic. Hana stayed after and marked the example in my notebook, which is the only reason that chapter stuck.
Two boxes on scrap paper
Elliot teaches English in Busan and had been reading Solana notes on the tram for a month before he took a seat in the spring 2025 series. He could define a keypair. He could not keep a program separate from the account that holds the program's bytes. Every time the note said owner, he pictured a person.
Week four is the programs sitting. Minjae Park took a scrap from the back of the pack and drew two boxes. One box was labeled in Elliot's own handwriting after Minjae refused to write the words for him: program account. The other: data account. Minjae asked which box a signature is checked against when the instruction runs. Elliot pointed at the wrong box, then corrected himself before anyone else spoke.
He kept the scrap. In his note to the room a month later he said the rest of the series was easier once those two boxes stayed different. He still finds rent arithmetic fiddly and booked his included desk hour for that alone, which is what the hour is for.