Sean T. Allen on Deny Capabilities for Safe, Fast Actors

Papers We Love
Papers We Love
Public group


620 8th Ave · New York, NY

How to find us

Location image of event venue


PLEASE NOTE: You _must_ have your real name on your account _and_ provide a photo ID at the entrance to attend, per the venue rules.

Reminder: Papers We Love has a code of conduct. Breaching that CoC is grounds to be ejected from the meetup at the organizers' discretion.

"Deny Capabilities for Safe, Fast Actors (2015)" by Sylvan Clebsch et al. lays out the core novel idea behind the Pony programming language: reference capabilities. Reference capabilities take object capabilities, turn them on their head and then apply them to variable aliases.

Not sure what that means? Come on out to Papers We Love, where Sean T. Allen (member of the Pony core team) will explain Deny Capabilities and how Pony combines them with an actor based model -- to provide a programming environment that allows for data-race freedom and fearless concurrency.

- Paper:
- Pony:


**Speaker Bio**

Sean T. Allen is a member of the core team for the Pony programming language and an all-around swell fella.



620 8th Ave, 45th Floor
New York, NY 10018 USA
Doors open at 6:30pm EST


**Talks are always recorded on video and released ~2 weeks after the meetup.**

We hope that you'll read some of the papers and references before the meetup, but don't stress if you can't.

If you have any questions, thoughts, or related information, please visit #pwlnyc ( on slack (, our GitHub repository (, or add to the discussion on this event's thread.