Marketing myths, debunked.
By Mahesh Murthy. A working list of the inherited theories, fictional metrics and industry folklore that don't survive contact with a P&L. We've been debunking these for twenty-one years. The list keeps growing.
Quick debunks
Myth
Brand-building can't be measured.
Reality
It can. It's measured the same way every other marketing investment is — against revenue. The people who say it can't are usually the ones who don't want to be measured. Brand effects show up in branded search volume, direct traffic, organic conversion rate, repeat-purchase rate, and the cost of acquiring the next million customers. None of these are mysterious. They're just inconvenient.
Marketing bullshit vs marketing scienceMyth
You need a six-month brand strategy before you can run a campaign.
Reality
You need a hypothesis, a budget, and a kill criterion. Brand emerges from the campaigns that worked. Strategy decks emerge from the campaigns that didn't. The agencies who insist on six months of strategy are the ones who can't run a campaign that pays for itself in week one.
Evidence-based marketingMyth
Award-winning creative drives growth.
Reality
It correlates with growth in roughly the same way that expensive watches correlate with punctuality. Creative is a multiplier on a working strategy. It cannot rescue a broken one. Most of the work that wins Cannes was paid for by clients who never sold an extra unit because of it.
Browse all beliefsMyth
Retainers buy you a committed agency.
Reality
Retainers buy you an agency that gets paid the same whether you grow or shrink. The committed ones tie their compensation to your outcomes. If your agency hasn't offered to share the risk, ask why. The answer is almost always: because they don't believe their work will produce the result.
Outcome-based marketingMyth
The 4Ps still describe how marketing works.
Reality
Product, Price, Place, Promotion was a useful framework in 1960. It is now a museum exhibit. Modern commerce is shaped by algorithmic distribution, on-demand pricing, owned media and consumer reviews. None of that fits cleanly into Kotler's box. We teach it in business schools because it's easy to test, not because it's true.
The 4Ps and other bullshitMyth
AI will replace marketers.
Reality
AI will replace the marketers who were doing the work AI is good at — generic copy, generic creative, generic media plans. The ones who were being paid for judgment will get more leverage, not less. The slop is going to get worse before it gets better. Brands that lean into it will look indistinguishable from every other brand that did the same thing.
Marketers and AI: just pour some slopMyth
Performance marketing is the opposite of brand marketing.
Reality
Performance marketing is brand marketing executed on platforms where the conversion event happens to be measurable. The two have been functionally identical for a decade. The people who insist on the distinction are usually selling one and avoiding accountability for the other.
Performance marketing as fictionMyth
Multi-touch attribution tells you what worked.
Reality
Multi-touch attribution tells you a story your stakeholders find acceptable. It is not measurement. It is theatre. The closest thing the industry has to honest measurement is geo holdouts and incrementality testing — neither of which the average attribution dashboard performs.
Attribution as theatreMyth
More agencies means more specialised expertise.
Reality
More agencies means more meetings, more finger-pointing, and more spend lost in the seams between briefs. The teams who ship the most growth are usually the smallest, with the clearest line of accountability and the most skin in the game.
Evidence-based marketingMyth
Loyalty programmes build loyalty.
Reality
Loyalty programmes build a database. Loyalty is built by a product that works and a brand that's worth being seen with. The points are a tax you pay for not building either of those well enough on the first try.
Loyalty marketing and other bullshitGot a marketing theory you want stress-tested?
We've spent two decades replacing marketing folklore with evidence-based practice. If there's a theory your last agency sold you that you'd like challenged honestly, tell us about it.