[Lightning-dev] Summary of the Second Lightning Development Summit (2018 Adelaide)

ZmnSCPxj ZmnSCPxj at protonmail.com
Wed Nov 14 13:47:55 UTC 2018

The link in the original post contains actual descriptions of "wumbo" and "hidden destinations".
Admittedly, the linked wiki page is not necessarily clear, so I shall describe them here anyway.

Wumbo is the study of all things wumbological.
I wumbo, you wumbo, he wumbo she wumbo.
Wumbological, being or having wumbo.
If "M" is "mini", we can turn around the "M" into "W", which means "wumbo".
In short, more clearly, "wumbo" mans "maxi" or removing the channel capacity limit.
If both sides of a new channel agree to wumbo each other by setting `option_i_wumbo_you_wumbo`, they can build channels with capacity higher than 167.77216mBTC.
A node that advertises `option_wumborama` allows any node to build channels with capacity above the limit.
Please blame one of the persons attending the summit for this term.
Unfortunately, due to rules imposed, non-attendees can only learn who to blame if that person admits this.

Hidden destinations is basically "rendezvous routing".
See "Rendez-vous Routing" thread by CJP on the list, and the discussion on thread "Link-level payment splitting via intermediary rendezvous nodes" on the list.


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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Wednesday, November 14, 2018 8:41 PM, Cezary Dziemian <cezary.dziemian at gmail.com> wrote:

> Thanks,
> Great work. I'am excited especially by dual-funded channels.
> Unfortunately I don't know what  "Wumbo" and "hidden destinations" are. Could you explain or provide some links?
> What about eltoo?
> Best Regrads,
> Cezary Dziemian
> wt., 13 lis 2018 o 00:29 Rusty Russell <rusty at blockstream.com> napisał(a):
>> Two years ago, a dozen Lightning implementers met in Milan to start the
>> Lightning Specification 1.0.  Last week the 18 most active spec
>> contributors gathered in Adelaide to kick off version 1.1.
>> After two days we emerged with 30 accepted changes for next version,
>> many very detailed and some requiring further on-list refinement.
>> Highlights include multi-path payments, dual-funded channels, splicing,
>> wumbo, hidden destinations, and many gossip improvements.
>> Please join in the continuing discussion: the work points have been
>> transferred to the Wiki:
>>         https://github.com/lightningnetwork/lightning-rfc/wiki/Lightning-Specification-1.1-Proposal-States
>> Thanks to all those who attended and patiently contributed their
>> expertise to some extremely difficult questions; it was an honor to be
>> in the room with you all.
>> Cheers,
>> Rusty.
>> _______________________________________________
>> Lightning-dev mailing list
>> Lightning-dev at lists.linuxfoundation.org
>> https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev
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