[Harmless Teddy Bear]

Yes. My husband for example needs to be bled. Every quarter he needs to have a pint drained off to prevent a dangerous buildup of iron in his system.

I would also invent double entry book keeping.

Yes, I know that is something only an accountant knows about but it really did revolutionize business.

[Zeneta]

You’re funny.

I think the printing press could be something that most of us here could develop with very little help.

Something that would make the greatest impact.