Signal: When TAM Becomes Future Imaginable Market
TAM becomes slippery when a reachable, an imaginable, and a narrative market all sit inside one number and everyone politely pretends the number is neutral.
When TAM Becomes Future Imaginable Market
A market size can be useful but it can also become a very polished way of saying “we hope this future happens.”
TAM is where uncertainty goes to look organised (a spreadsheet was probably involved).
What showed up
The SpaceX IPO conversation is not only about rockets already flying or Starlink customers already paying, it is also about a much larger future: space-based AI, data centers in orbit, Mars, and markets that are still being invented.
Why it matters
That does not make the story wrong because big infrastructure often needs belief before proof. But operators should notice when a valuation leans on a future that still needs customers, infrastructure, regulation, capacity, and a lot of unglamorous execution (sounds familiar?).
The pattern
A reachable market, an imagined market, and a narrative market are three different things. TAM becomes slippery when all three sit inside one number and everyone politely pretends the number is neutral.
Where this shows up in everyday work for operators
- A project says “the opportunity is huge” before anyone has tested whether users will change behaviour.
- An AI business case counts every employee as a future user.
- A transformation says “global scale” before one country has fully adopted it.
What to watch before it becomes another programme
Before this becomes another programme, ask; what part of the market is reachable today, what part is future option, and what part is just a beautiful chart with ambition in it.
The Satire
If the customer only appears in row 47 of the spreadsheet, please do not call them an active user.
Related Vieews paths
Signals pull the thread. Guides help check it. Playbooks hold the heavier structure when needed.
Guide
TAM Reality Check
Use this when a huge market-size number is carrying too much of the argument.
Guide
Future Value Assumption Map
Map what has to become true before the future can become value.
Playbook
AI Value Ledger
For the heavier structure behind value proof.
Useful context
This Signal uses the SpaceX IPO as a current public example of future-value storytelling, infrastructure ambition and valuation imagination.
These are Vieews, not bibles, use as basic lenses, not prediction, investment advice, or a replacement for doing own research. If a line makes the spreadsheet uncomfortable, excellent, ask one more question, tug on that thread (don't get fired!).
