1 2016-11-24 00:01:55 <rusty> sipa: no, it is in practice, because we use a static limit in lightning on what the "don't create an output" amount is.
2 2016-11-24 00:02:26 <sipa> rusty: but you shouldn't care about that static limit, just use the current actual feerate
3 2016-11-24 00:02:31 <rusty> sipa: we need to tie it to the fee amount, I think.
4 2016-11-24 00:02:48 <sipa> rusty: you must have some estimate of the network feerate to determine how much fee to pay
5 2016-11-24 00:02:59 <sipa> imho you should use that rate to determine what the minimum amount value is
6 2016-11-24 00:03:17 <sipa> and it seems highly unlikely that that would ever be lower than the relay rate
7 2016-11-24 00:03:47 <rusty> sipa: exactly.  But independently, trimming outputs also allows opportunities to steal, so the calculation is a little more complex.  We also way overpay fees (because futureproof, and rare).