Transcript for 09-02-2018, 13 lines:
11:13:26 punkman: I think the next fork drama is gonna be about this or similar
11:13:55 punkman: " If all Bitcoin transactions were confidential and used Bulletproofs, then the total size of the blockchain would be only 17 GB, compared to 160 GB with the currently used proofs."
11:14:37 pankkake: would it require a hard fork?
11:17:04 punkman: well yeah, how is old node gonna verify anything
11:23:17 punkman: "In order to spend more time working independently on deep protocol work, especially new cryptographic privacy and security technology for Bitcoin, I resigned from Blockstream last November."