It blows my mind that SpaceX's BFR project plans to send more payload in reusable mode than Saturn V did in full expendable mode (150,000 kg vs 140,000 kg).
This capacity is only for a fully expendable vehicle (See http://www.spacex.com/about/capabilities). Reusable payload is subtantially less, although not specified on their website.
Also it's 140000 lbs, or 63800kg.
The poster you are replying to was talking about the BFR not the Falcon Heavy