Re: [Lightning-dev] Handling nonzerobasefee when using Pickhard-Richter algo variants

2021-08-30 Thread René Pickhardt via Lightning-dev
Dear ZmnSCPxj, thank you very much for this mail and in particular the openess to tinker about a protocol change with respect to the transport layer of HTLCs / PTLCs! I fully agree that we should think about adopting our onion transport layer in a way that supports local payment splits and merges

Re: [Lightning-dev] Handling nonzerobasefee when using Pickhard-Richter algo variants

2021-08-30 Thread Stefan Richter
Hi Zmn! While you have some interesting thoughts about the implementation of min-cost flow based routing, I feel that there are at least two grave misunderstandings here: First, the problem with the base-fee or any similar constant is that they make the fee function concave at the point where

[Lightning-dev] Handling nonzerobasefee when using Pickhard-Richter algo variants

2021-08-30 Thread ZmnSCPxj via Lightning-dev
Good morning list, It seems to me that the cost function defined in Pickhard-Richter can in fact include a base fee: -log(success_probability) + fudging_factor * amount * prop_fee + fudging_factor * base_fee (Rant: why do mathists prefer single-symbol var names, in software engineering