Channel Physics
Core Premise: Every acquisition channel has an "economic gravity" - a stage at which it works and a stage at which it collapses. Choosing the wrong channel for your stage is not a tactical error. It is a structural failure.
The Channel Fantasy
Founders love to believe that growth is a matter of finding the "right channel." The fantasy: somewhere out there is a magical distribution mechanism that, once discovered, will unlock exponential growth.
This is a misunderstanding of how channels work.
Channels are not inherently good or bad. They are stage-dependent. A channel that produces spectacular returns at $1M ARR may be mathematically impossible at $100k ARR.
The Three Laws of Channel Physics
Law 1: CAC Scales with Competition
Every channel becomes more expensive as more companies compete within it. Google Ads for "CRM software" cost $2/click in 2010. Today: $50+/click.
Implication: Channels that worked five years ago may no longer be viable today.
Law 2: Minimum Viable Spend Creates Floors
Most channels have a minimum investment threshold below which no meaningful signal emerges.
- Paid social: $10-20k/month minimum for statistical significance
- Content marketing: 12-18 months of consistent investment before compounding
- Events: $50k+ per meaningful conference presence
Implication: If you cannot afford the minimum viable spend, the channel does not exist for you.
Law 3: Conversion Ceilings Are Real
No channel converts at 100%. Each has a maximum conversion potential based on intent levels. Cold outbound: 1-3%. Inbound content: 5-15%. Referrals: 30-50%.
The Channel-Stage Fit Matrix
| Channel | Pre-$50k | $50k-$100k | $100k-$500k |
|---|---|---|---|
| Founder Outbound | ✅ Primary | ✅ Primary | ⚠️ Transition |
| Warm Referrals | ✅ Primary | ✅ Secondary | ✅ Secondary |
| Content/SEO | ⚠️ Plant seeds | ⚠️ Build foundation | ✅ Primary |
| Paid Ads | ❌ Too expensive | ⚠️ Test only | ✅ Secondary |
| Events | ❌ Too expensive | ❌ Limited ROI | ⚠️ Selective |
The Pre-$100k Channel Stack
At pre-$100k ARR, the channel options are limited by economics:
Primary: Founder Outbound - Direct, personalized outreach from the founder. Highest conversion rate. Lowest cost. Does not scale, but provides learning and validation.
Secondary: Warm Network - Referrals, introductions, and second-degree connections. Higher conversion than cold. Limited by network size.
Investment: Content Foundation - Start creating content that will compound. Not for immediate returns - for long-term leverage.
Channel Hopping: The Death Spiral
The failure mode: founders rapidly switch between channels without sustained investment, producing no meaningful data from any single channel.
The rule: Commit to a channel for 90 days minimum before evaluating. Anything shorter produces noise, not signal.
Conclusion: Match Channel to Stage
The founders who burn through runway "testing channels" are not unlucky. They are ignorant of channel physics.
At $0-$100k, the only channels that work are the ones that don't require budget: founder outbound and warm network. Everything else is a bet you cannot afford to make.
Match your channel to your stage. The physics are not negotiable.