OK, I'll start: 

I have some canned food, some lightly-worn clothes, and can write things for you. 

I need soap, a haircut, and some seashells. 

Let's barter.

The only problem is externality pricing.

Building https://negationgame.com

Good it was a trick question, thank you for your stewardship

Sorry I’ll need to know what you plan to use the seashells for I’m trying to minimize my environmental impact

i have a haircut but it's non-transferrable.

i can tokenize my ownership of it and trade it for half your canned goods and a ZK proof that you wrote something for me.

I have only got some beers 🍺 left…, u care @packy

Vix hit 65. You’re going to need more Mac and cheese.

Ok now I’m concerned. But also — great idea.

I need soap, a haircut, and some seashells, canned food and some lightly-worn clothes

i can code and talk about blockchains

let's barter?