[wk_end]

...which illustrates one of the oddities of Smalltalk's vision of OOP pretty well. I've made deposits into accounts, or maybe I've asked banks to make a deposit into an account on my behalf, but I've never (intuitively) instructed an account to make a deposit into itself.

[PaulDavisThe1st]

level error!

   account deposit: $100

was the message from the bank teller to the account, not from you :)

[wk_end]

Do bank tellers, conceptually, think of themselves as telling accounts to add $100 to themselves? Or do they think of themselves as adding $100 to an account?

[PaulDavisThe1st]

... when the bank teller's are software-driven entities, they might :)

[wk_end]

Yes, I suppose it's the case that if the bank tellers are written in Smalltalk, the Smalltalk way of doing things make sense.

[bitwize]

Yeah, you're supposed to say:

    bankTeller deposit: (100 dollars) in: myAccount.