<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div><blockquote type="cite" class=""><div class="">On Mar 22, 2017, at 3:30 AM, Rien <<a href="mailto:Rien@balancingrock.nl" class="">Rien@balancingrock.nl</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">I am less sanguine about the burden of proof.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Imo there is no absolute and irrevocable proof needed to accept or reject a change proposal.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""></div></blockquote></div><div class=""><br class=""></div><div class="">I'm sorry, I used an idiomatic phrase which may not be obvious to non-native speakers.</div><div class=""><br class=""></div><div class="">When you say someone has the "burden of proof", that does not mean that they must objectively prove their position beyond any doubt. It means that it's their job to convince you, and absent a convincing argument from them, you will choose against them.</div><div class=""><br class=""></div><div class="">What I mean is that, when we evaluate a proposal, we should assume it should be rejected; it's the proposal's job to convince us to accept it instead. This is true for all proposals, but especially for this one, because it reverts a previous proposal and removes an existing language feature.</div><div class=""><br class=""></div><div class="">Personally, I *am* convinced that we should accept this proposal. In my own personal experience, I found scoped `private` to be occasionally useful, but more often a hinderance. And this review thread has turned up some good, novel arguments on the "drop it" side. Meanwhile, I think that the "keep it" side's arguments are generally pretty weak, and some of them seem to stem from beliefs about Swift that are at odds with my own.</div><div class=""><br class=""></div><div class="">But this is not a clear-cut technical issue and there are larger process issues at stake, so even though I personally endorse the change, I want to encourage the core team to evaluate this proposal conservatively. That's all I'm saying.</div><div class=""><br class=""></div><div class="">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div class=""><div style="font-size: 12px; " class="">-- </div><div style="font-size: 12px; " class="">Brent Royal-Gordon</div><div style="font-size: 12px; " class="">Architechies</div></div></span>
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