BuildOS Blog

Personalization vs. Relevance: Lessons from Becc Holland (Flip the Script)

A deep read of Becc Holland's relevance framework — the four relevance types (Firmographic, Demographic, Technographic, Trigger-based), the three trigger sub-types (Inbound, Postbound, Bridgebound), and the "if you can send it to two people, it's relevance not personalization" test that separates real research from decorative AI-generated openers.

6 min Read article

Trigger Event Selling: Lessons from Craig Elias

A deep read of Craig Elias's "Shift Selling" framework — the A/B/C trigger taxonomy (Awareness, Bad experience, Change), why prospects need three events to actually buy, the 75% win-rate first-in advantage, and how to systematically monitor for buying moments instead of guessing at timing.

Reply-Method Cold Email: Lessons from Florin Tatulea and 30MPC

A deep read of the 30 Minutes to President's Club cold email showdown with Florin Tatulea, Evan Greek, and Jason Bay: packaging, subject-plus-preview, mobile-readable body copy, personality, social proof, AI-assisted research, and soft offer CTAs.

12 min Read article

Ideal Customer Profile: Lessons from Lincoln Murphy

A deep read of Lincoln Murphy's canonical ICP framework — the seven dimensions (Ready, Willing, Able, Success Potential, Acquisition Efficiency, Ascension, Advocacy), the six fit types inside Success Potential, why the ICP describes a situation rather than a permanent customer type, and how it differs from a buyer persona.

7 min Read article

Science of Scaling: Lessons from Mark Roberge

A deep read of Mark Roberge's revenue-growth framework — the aha-moment formula ("P% of customers achieve E events every T days"), the Green/Yellow/Red segment tiering, the Quality-x-Engagement lead grid, and why retention beats growth as the leading indicator of product-market fit.

Cold Emailing Investors: Lessons from Michael Seibel

A deep read of Michael Seibel and Y Combinator on cold-emailing investors: short factual emails, no jargon, company-address credibility, optional deck discipline, tracking opens, no immediate meeting ask, and the right order of operations for starting an investor conversation.

AI-Era Show Me You Know Me: Lessons from Sam McKenna

A deep read of Sam McKenna on why seller-centered cold calling and spray-and-pray email underperform modern buyer behavior, and how Show Me You Know Me research, LinkedIn signals, authentic personal connection, thread-based nurturing, and buyer-timed follow-up create executive replies.

10 min Read article

Low-Friction Replies: Lessons from Steli Efti

A deep read of Steli Efti and Close on the 1-2-3 email hack: why silence is the enemy, how reply-with-a-number options reduce buyer friction, where the tactic fits in top-of-funnel qualification and ghosted follow-up, and how to use it without becoming gimmicky.

9 min Read article

Minimum Viable Segment: Lessons from Underscore VC (Michael Skok)

A deep read of the Minimum Viable Segment (MVS) framework from Underscore VC and Michael Skok — the three criteria a segment must meet (Common Needs, Dominability, Viability with MVP), the disqualifiers that pull a segment out of scope, and why divergent needs are the real reason MVPs fail to land.

6 min Read article

Philosophy May 14, 2026

The Floor Under the Agents: Where Does the Project Live?

YC is flooded with agents, AI coworkers, vertical operating systems, and agent infrastructure. The missing question is where durable project memory lives.

Volume, Front-End Offer, And Human-Sounding Scripts: Lessons from Aaron Shepherd

A deep read of Aaron Shepherd's "I Sent 1,500,000 Cold Emails Last Month, Here's What Works in 2026" — the volume-as-data thesis, the 70/30 Outlook-Google domain infrastructure, the front-end-offer test-drive, and the human-sounding script discipline.

11 min Read article

Engagement-First Cold Email: Lessons from Austin Schneider (Instantly)

A deep read of Instantly's "The New Way of Cold Emailing in 2026" — why AI spam filters killed the seven-touch playbook, the deliverability infrastructure floor (5 emails per domain, ~30/day each), micro-targeted value campaigns (the under-50-recipient reply-rate cliff), and the two-touch rule with non-responder recycling.

11 min Read article

Less Is More Cold Email: Lessons from Connor Murray

A deep read of Connor Murray's "10 Years of Expert Cold Email Advice in 36 Minutes" — the three-paragraph body, assumptive language replacement, the coiled-spring prep system, and the AB follow-up cadence that turns a 10-email day into a 100-email day.

12 min Read article