Kaizhi Tang

AI Investment Frontier

组合强化学习需要启发式先验层

A new arXiv paper on heuristic portfolio optimization reframes equal weight, risk parity, HRP, and RA-HRP as stable policy priors for reinforcement-learning portfolio systems.

AI Investment Frontier

RL Portfolios Need a Heuristic Prior Layer

A new arXiv paper on heuristic portfolio optimization reframes equal weight, risk parity, HRP, and RA-HRP as stable policy priors for reinforcement-learning portfolio systems.

AI Signals and Reality Checks

AI 迁移日历正成为产品风险

The important thing is not that model vendors are shipping faster; it is that migration calendars are becoming production risk because agent apps bind workflow logic to vendor-owned orchestration surfaces.

AI Signals and Reality Checks

AI Migration Calendars Are Becoming Product Risk

The important thing is not that model vendors are shipping faster; it is that migration calendars are becoming production risk because agent apps bind workflow logic to vendor-owned orchestration surfaces.

Teenage Christian Meditation

God is safer than everyone's opinion

A short teen devotional on Proverbs 29:25 for when you feel trapped by what other people might think.

Young Christian Meditation

Your soul needs restoration more than another reset

A short meditation on Psalm 23:3 for the young adult who keeps trying to reset life instead of receiving God's restoration.

Woman Christian Meditation

主仍怀抱发白的你（赛46章4节）

当身体变慢、白发增多、心里不再像从前那样有余力时，主不是把你放下；祂仍怀抱，也仍施行拯救。

Men Christian Meditation

先交托，再谋算（箴16章3节）

真正的谋算，不是先把一切抓紧，而是先把心交给主。

AI Investment Frontier

执行 AI 需要因果影响传感器

A June 2026 arXiv paper on real-time price impact detection shows why AI execution systems need action-level causal telemetry, not only slippage dashboards.

AI Investment Frontier

Execution AI Needs a Causal Impact Sensor

A June 2026 arXiv paper on real-time price impact detection shows why AI execution systems need action-level causal telemetry, not only slippage dashboards.

AI Signals and Reality Checks

AI 搜索广告正成为控制迁移

重要的不是 Google 正在把 AI 加进搜索广告，而是付费搜索的控制权正在从广告主手写的定向规则，迁移到平台管理的学习回路中，因为 AI 搜索的商业化取决于谁拥有查询意图。 6 月 11 日，Google 告诉 Ads API 开发者，它将把 Dynamic Search Ads 自动迁移到 AI Max for Search campaigns 的时间，从 2026 年 9 月推迟到 2027 年 2 月，并且会在 6 月 15 日恢复创建新的 DSA campaign。开发者博客说，这个推迟是为了给广告主更多时间测试、管理迁移，并保留对

AI Signals and Reality Checks

AI Search Ads Are Becoming a Control Migration

AI Search Ads Are Becoming a Control Migration The important thing is not that Google is adding AI to search ads; it is that paid search control is migrating from advertiser-authored targeting to platform-managed learning loops because AI search monetization depends on who owns query intent. On June

Teenage Christian Meditation

God gives enough grace for today

God gives enough grace for today Some days your brain tries to live a whole week before breakfast. You think about grades, plans, what people expect, and all the stuff that might go wrong. God gives enough grace for today. Jesus says, "Therefore do not worry about tomorrow, for

Young Christian Meditation

Slow the reaction before it becomes regret

A short Christian meditation for young adults on letting God slow your reaction before anger speaks for you.

Woman Christian Meditation

主使我安然睡下（诗4篇8节）

夜里许多牵挂会重新浮上来；主知道那些还没有答案的事，也亲自使倚靠祂的人安然居住。

Men Christian Meditation

给主做，不给掌声（西3章23节）

同一件事，若是做给主，就不必靠掌声支撑。

AI Investment Frontier

私募信贷 AI 需要可审计的承销框架

A June 2026 arXiv paper on AI-augmented ship-finance loan origination shows why private-credit AI should be built as an auditable underwriting harness, not a free-form credit oracle.

AI Investment Frontier

Private Credit AI Needs an Underwriting Harness

A June 2026 arXiv paper on AI-augmented ship-finance loan origination shows why private-credit AI should be built as an auditable underwriting harness, not a free-form credit oracle.

AI Signals and Reality Checks

IDE 正成为智能体的网关

The important thing is not that Xcode added more coding agents; it is that Apple is turning the IDE into the gatekeeper for developer context because the workflow host decides what an agent can see, change, preview, and ship.

AI Signals and Reality Checks

The IDE Is Becoming the Agent Gatekeeper

The important thing is not that Xcode added more coding agents; it is that Apple is turning the IDE into the gatekeeper for developer context because the workflow host decides what an agent can see, change, preview, and ship.

Market Opinion

AM Trader Brief — 2026-06-12

AM Trader Brief — 2026-06-12 Sources and fetch time: Yahoo Finance chart snapshots for NQ=F, ES=F, CL=F, GC=F, DX-Y.NYB, ^TNX, ^VIX fetched 07:02 ET. Nasdaq economic calendar fetched 07:02 ET. US equity markets are open on the regular calendar today; no

Teenage Christian Meditation

God sees the good you are tired of doing

God sees the good you are tired of doing Doing the right thing can feel exhausting when nobody notices. You keep being patient, keep trying, keep showing up, and it can seem like it does not matter. God sees the good you are tired of doing. Paul writes, "Let

Young Christian Meditation

Plan the step; trust God with the route

A short Christian meditation for young adults on making the next faithful plan while trusting God with the path.

Woman Christian Meditation

疲乏的心，主必满足（耶31章25节）

有些疲乏不是一夜造成的；主知道长期照顾、忍耐和沉默怎样耗尽人，也应许亲自使愁烦的心知足。

Men Christian Meditation

话多之前先安静（箴10章19节）

话说得越多，心不一定越清楚。