Cheap talk

What a letter used to prove

For most of working life, the cover letter asked one thing of a job seeker. Prove that you care. It was never really about the writing. It was a signal. An hour spent tailoring three paragraphs told an employer that a candidate had read the role, understood the company, and wanted it enough to work for the chance. The effort was the message, and the message was hard to fake.

Judd Kessler, a business economics professor at Wharton, gave the change its name. Writing in Fortune this March, he argued that AI turned that costly signal into cheap talk. When a polished, tailored letter takes thirty seconds and costs nothing, it stops separating the motivated from everyone else.

The moment the signal broke

There is research under the claim. The economists Jingyi Cui, Gabriel Dias, and Justin Ye studied a major hiring platform after it introduced an AI cover-letter assistant, work Kessler cites in the same piece. Letters got better. More candidates produced sharp, specific, well-aimed paragraphs than before. Then employers quietly stopped leaning on cover letters at all. Once everyone could generate the signal, the signal meant nothing.

That is the part worth sitting with. The tool worked. The letters improved. The ritual still died.

The thing it never measured

Here is what we believe at CoBlack, and it predates the current panic. The cover letter never measured whether someone could do the job. It measured who had a free evening, the right vocabulary, and the nerve to perform enthusiasm on command.

None of that is capability. A parent closing a late shift carries the same skills with or without the hour to polish a paragraph. A career changer who can speak for hours about the work itself can still freeze at a blank page. The ritual taxed the people with the least time to give, and then it called that tax effort.

Proof you should not have to perform

We built CoBlack around the opposite idea. Fit should come from what a person can actually do, not from how well they describe wanting it. CoBlack matches on capability, the scope of work someone has handled and the problems they have solved, drawn from validated employer career pages and applicant tracking systems rather than the open boards. The reasoning behind every match is shown in plain language before a single application goes out. You are never asked to manufacture interest you already feel.

The cover letter is dead because the thing it measured was always borrowed. Performance of effort was never proof of fit, and the people the ritual taxed hardest were rarely the ones least able to do the job.

What fills the space

Something will replace it. Kessler expects networking, the coffees and introductions an AI cannot sit through on your behalf. Maybe. But for the person without a network, that is simply a different tax, paid in access instead of time.

The fairer answer is the one the ritual always sidestepped. Judge people on what they can do. Then let them spend the hour they used to lose on a life, not a letter.