News180: topics and harding's final edits

_posts/en/newsletters/2021-12-22-newsletter.md

@@ -68,7 +68,7 @@ LND.  Signets are test networks anyone can use to simulate Bitcoin's
 main network (mainnet), either as it exists today or how it might exist
 with certain changes (such as the activation of a soft fork consensus
 change).  Most software implementing signets also supports a default
-signet that provides a particularly convenient environment for software
+signet that provides a particularly convenient means for software
 developed by different teams to be tested in a safe environment that
 comes as close as possible to the environment they'll experience when
 real money is at stake.  Also [discussed][signet reorgs] this year was
@@ -245,7 +245,7 @@ addresses.
 - **December<!--taproot-->** saw Bitcoin Core merge a PR that would
   allow [descriptor wallets][topic descriptors] to create
   [bech32m][topic bech32] addresses for receiving taproot payments.  LN
-  devs also further discussed [making use][ln ptlcs] of taproot's
+  developers also further discussed [making use][ln ptlcs] of taproot's
   features.
 
 Despite complications choosing an activation mechanism for taproot and
@@ -392,7 +392,7 @@ relay][topic package relay] will allow relay nodes and miners to treat
 packages of related transactions as if they were a single transaction
 for feerate purposes.  A package might contain a parent transaction with a
 low feerate and a child transaction with a high feerate; the
-profitability of mining the parent transaction would incentivize miners
+profitability of mining the child transaction would incentivize miners
 to also mine the parent transaction.  Although package mining has been
 [implemented][bitcoin core #7600] in Bitcoin Core since 2016, there has
 so far been no way for nodes to relay transactions as packages, meaning
@@ -424,7 +424,7 @@ instant payments. A node that sees the advertisement can simultaneously
 pay for and receive the inbound capacity using a [dual funded][topic
 dual funding] channel open. Although there’s no way to enforce that the
 advertising node actually routes payments, the proposal does incorporate
-an earlier proposal also [later used][lnd#5709] in Lightning Pool that
+an earlier proposal (also [later used][lnd#5709] in Lightning Pool) that
 prevents the advertiser from using their money for other purposes until
 the agreed upon lease period has concluded.  That means refusing to
 route payments would provide no advantages but would deny the
@@ -504,7 +504,7 @@ In Optech's fourth year, we published 51 weekly [newsletters][], added 30
 new pages to our [topics index][], published a [contributed blog
 post][additive batching], and wrote (with the help of [two][zmn guest]
 guest [posters][darosior guest]) a 21-part series about [preparing for
-taproot][p4tr]).  Altogether, Optech published over 80,000 words about
+taproot][p4tr].  Altogether, Optech published over 80,000 words about
 Bitcoin software research and development this year, the rough
 equivalent of a 250-page book. <!-- wc -w _posts/en/newsletters/2021-*
 _includes/specials/taproot/en/* -->
@@ -554,7 +554,7 @@ the same benefits of eltoo but without requiring the
 consensus changes.  The proposal would reduce payment latency to nearly
 as fast as data could travel one way between all the routing nodes on a
 particular path. It would also increase resiliency by allowing a node to
-backup all of the information it needs at the time a channel is created
+back up all of the information it needs at the time a channel is created
 and obtain any other information in most cases during a data restore.
 It would also allow receiving payments with an offline key, allowing
 merchant nodes in particular to limit the amount of time their keys
@@ -597,7 +597,7 @@ very much want to see them credited for their incredible work, but we
 also want to recognize all of the contributors who we wouldn't normally
 mention.
 
-They're the people spending hours on coding reviews, or who are writing
+They're the people spending hours on code reviews, or who are writing
 tests for established behavior to ensure it doesn't unexpectedly change,
 or who put effort into debugging mysterious issues to fix problems
 before money is put at risk, or who are working on a hundred other tasks
@@ -616,7 +616,6 @@ see what exciting new developments they will deliver in 2022.
 *The Optech newsletter will return to its regular Wednesday publication
 schedule on January 5th.*
 
-<!-- FIXME add topic links, there's gonna be a lot!!! -->
 {% include references.md %}
 {% include linkers/issues.md issues="878,7600" %}
 [2018 summary]: /en/newsletters/2018/12/28/

_topics/en/atomic-multipath.md

@@ -52,6 +52,9 @@ optech_mentions:
   - title: "LND 0.14.0-beta allows multiple spontaneous payments to the same AMP invoice"
     url: /en/newsletters/2021/11/24/#lnd-0-14-0-beta
 
+  - title: "2021 year-in-review: atomic multipath payments"
+    url: /en/newsletters/2021/12/22/#amp
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Simplified Multipath Payments (SMP)

_topics/en/bech32.md

@@ -117,6 +117,9 @@ optech_mentions:
   - title: "Bitcoin Core #16807 returns the location of typos in bech32/bech32m addresses"
     url: /en/newsletters/2021/12/01/#bitcoin-core-16807
 
+  - title: "2021 year-in-review: bech32m addresses"
+    url: /en/newsletters/2021/12/22/#bech32m
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Javascript bech32 demo decoder

_topics/en/channel-jamming-attacks.md

@@ -70,6 +70,9 @@ optech_mentions:
   - title: "Summary of LN developer conference, including discussion of channel jamming attacks"
     url: /en/newsletters/2021/11/10/#ln-summit-2021-notes
 
+  - title: "2021 year-in-review: channel jamming"
+    url: /en/newsletters/2021/12/22/#jamming
+
 ## Optional.  Same format as "primary_sources" above
 # see_also:
 #   - title:

_topics/en/dual-funding.md

@@ -77,6 +77,12 @@ optech_mentions:
   - title: C-Lightning 0.10.1 updates the experimental implementation of dual funding
     url: /en/newsletters/2021/08/11/#c-lightning-0-10-1
 
+  - title: "2021 year-in-review: dual-funded channels"
+    url: /en/newsletters/2021/12/22/#dual-funding
+
+  - title: "2021 year-in-review: liquidity advertisements"
+    url: /en/newsletters/2021/12/22/#liq-ads
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: PSBT (dependency of dual funding)

_topics/en/offers.md

@@ -59,6 +59,9 @@ optech_mentions:
   - title: "Summary of LN developer conference, including discussion of offers"
     url: /en/newsletters/2021/11/10/#ln-summit-2021-notes
 
+  - title: "2021 year-in-review: offers"
+    url: /en/newsletters/2021/12/22/#offers
+
 ## Optional.  Same format as "primary_sources" above
 # see_also:
 #   - title:

_topics/en/onion-messages.md

@@ -38,6 +38,9 @@ optech_mentions:
   - title: "Eclair #2061 adds initial support for onion messages"
     url: /en/newsletters/2021/12/08/#eclair-2061
 
+  - title: "2021 year-in-review: onion messages"
+    url: /en/newsletters/2021/12/22/#offers
+
 ## Optional.  Same format as "primary_sources" above
 # see_also:
 #   - title:

_topics/en/output-script-descriptors.md

@@ -119,6 +119,9 @@ optech_mentions:
   - title: Bitcoin Core #22364 adds support for creating taproot descriptors in the wallet"
     url: /en/newsletters/2021/12/01/#bitcoin-core-22364
 
+  - title: "2021 year-in-review: output script descriptors"
+    url: /en/newsletters/2021/12/22/#descriptors
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Miniscript

_topics/en/package-relay.md

@@ -62,6 +62,9 @@ optech_mentions:
   - title: Proposal of initial rules for mempool package acceptance before implementing package relay
     url: /en/newsletters/2021/09/22/#package-mempool-acceptance-and-package-rbf
 
+  - title: "2021 year-in-review: mempool package acceptance and package relay"
+    url: /en/newsletters/2021/12/22/#mpa
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: CPFP fee bumping

_topics/en/ptlc.md

@@ -70,6 +70,9 @@ optech_mentions:
   - title: "Discussion about LN protocol changes necessary to support PTLCs"
     url: /en/newsletters/2021/12/15/#preparing-ln-for-ptlcs
 
+  - title: "2021 year-in-review: PTLCs for LN"
+    url: /en/newsletters/2021/12/22/#ptlcsx
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Hash Time Locked Contract (HTLC)

_topics/en/replace-by-fee.md

@@ -83,6 +83,12 @@ optech_mentions:
   - title: Proposal of initial RBF rules for mempool package acceptance before implementing package relay
     url: /en/newsletters/2021/09/22/#package-mempool-acceptance-and-package-rbf
 
+  - title: "2021 year-in-review: BIP125 opt-in replace-by-fee discrepency"
+    url: /en/newsletters/2021/12/22/#bip125
+
+  - title: "2021 year-in-review: default transaction replacement by fee"
+    url: /en/newsletters/2021/12/22/#default-rbf
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Opt-in RBF FAQ

_topics/en/sighash_anyprevout.md

@@ -83,6 +83,9 @@ optech_mentions:
   - title: "Inherited identifiers proposal as an alternative to `SIGHASH_ANYPREVOUT`"
     url: /en/newsletters/2021/10/06/#proposal-for-transaction-heritage-identifiers
 
+  - title: "2021 year-in-review: SIGHASH_ANYPREVOUT"
+    url: /en/newsletters/2021/12/22/#anyprevout
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: Eltoo

_topics/en/signet.md

@@ -102,6 +102,9 @@ optech_mentions:
   - title: "Preparing for taproot: testing on signet"
     url: /en/newsletters/2021/09/22/#preparing-for-taproot-14-testing-on-signet
 
+  - title: "2021 year-in-review: signet"
+    url: /en/newsletters/2021/12/22/#signet
+
 ## Optional.  Same format as "primary_sources" above
 see_also:
   - title: "Bitcoin Core #16411: signet support"

_topics/en/taproot.md

@@ -218,6 +218,9 @@ optech_mentions:
   - title: "BIPs #1225 updates BIP341 with extended taproot test vectors"
     url: /en/newsletters/2021/11/17/#bips-1225
 
+  - title: "2021 year-in-review: taproot"
+    url: /en/newsletters/2021/12/22/#taproot
+
 ## Optional
 see_also:
   - title: MAST