DowJo Research
Every note shows its evidence, what disagreed with it, what was refused, and what would change our mind. Filings before headlines. Both dates on every fact. No calls, ever.
DowJo trains financial judgment: learn, commit a call, see what happened, get coached on the process. Research is where the evidence lives — free to read, free to train.
Latest research · Investing in the AI Era · Episode 9
The AI attack surface arrived — just not where anyone was pointing. The industry has built a rich, mature vocabulary for attacks ON MODELS: prompt injection, data poisoning, model extraction, evasion, each with its own NIST identifier and its own OWASP rank.
Library
14 notes
Investing in the AI Era · Episode 9
The AI attack surface arrived — just not where anyone was pointing.
Investing in the AI Era · Episode 6
"Electricity" is not one constraint.
Investing in the AI Era · Episode 5
A bottleneck is not a property of a component.
Investing in the AI Era · Episode 7
In the physical world you cannot buy the intelligence on its own.
Investing in the AI Era · Episode 14
The thesis of the theses: under every film sat the same two questions, asked until they no longer needed the subject — compared with what, and as of when?
Investing in the AI Era · Episode 13
Markets pay everyone for carrying risk.
Investing in the AI Era · Episode 11
An announcement is not a rule.
Investing in the AI Era · Episode 12
A bubble is not a feeling everyone shares.
Investing in the AI Era · Episode 10
They were never six different stocks.
Investing in the AI Era · Episode 8
A cost saving is not a margin.
Investing in the AI Era · Episode 4
A dollar of AI spending does not stop at a chip.
Investing in the AI Era · Episode 3
A company reports the past.
Investing in the AI Era · Episode 2
A profitable trade is not evidence that the reasoning was good, and a loss is not evidence that it was bad.
Investing in the AI Era · Episode 1
You can be completely right about AI and completely wrong about the investment.
Browse by topic
Artificial Intelligence
What AI is actually doing to companies, workers and markets — read from filings, not from press releases.
14 notesMarkets
Prices, expectations and the record of what actually happened.
12 notesAI Infrastructure
Data centres, capital expenditure, power and the physical system behind the models.
6 notesFilings & Disclosure
What companies are required to say, what they choose to say, and the gap between the two.
6 notesSemiconductors
Chips, the companies around them, and the money that flows through them.
6 notesInvesting
Judgment under uncertainty, with real capital on the line.
5 notesValuation & Expectations
What a price assumes, and what has to happen for it to be right.
5 notesCorporate Margins
The line everybody watches, and what it can and cannot tell you.
4 notesBehavioral Finance
The mistakes people make with money, and the ones they make grading themselves.
3 notesProductivity
Where a productivity gain goes once it exists.
2 notesCybersecurity
Attack surfaces, defenders, and who pays when trust fails.
1 noteLabor & Jobs
Hiring, firing, wages and the doors between them.
1 noteMonetary & Fiscal
Rates, governments and the plumbing behind asset prices.
1 noteCollections
How we work
Lenses
Independent research lanes work a question from different angles — filings, statistics, literature, pricing — and return candidate claims with sources.
Refutation
Every candidate goes to a separate pass instructed to refute it against primary sources. Survivors become evidence. Casualties become the refused list, published with reasons.
Synthesis
The note assembles what survived: the thesis, the strongest case against it, what history licenses, what would change our mind, and what nobody can yet know.
Beyond research
Train your judgment before you risk your money. A free account opens the research desk on every note, the discussion rooms, and a practice record that shows what to train next.
A canonical finance school, taught concept by concept, belt by belt.
Open MentorJo investigates before answering, and cites what it finds.
Open PracticeDaily judgment reps on real markets — measured on your process, never on luck.
Open CommunityRooms where members compare reads under education-first ground rules.
Open