- twitter account for pilot? - getting users — how many? - ads? - cost per ad? - https://ads.twitter.com/campaign/18ce53xgv37/new/campaign/setup?&modal=create_campaign - 150k - sample size? - things to look out for? # Next steps - set up automated microbatch uploading - look into Twitter API - find users to target - Mohsen - how many? - intent-to-treat - twitter can help with more precise estimates - ask **Roderick** - guidance blackbox algorithm? - how does the list get pruned? - twitter api - twitter covariates - screen people into first hurdle - faster: engagement, activity - slower: collect their timeline - ads account HCL: Antonio