In Harry Frankfurt's analysis, what precisely is "bullshit" — and what is its single defining feature?

Speech produced with no concern for whether it is true or false — the bullshitter is indifferent to the truth, neither trying to state it nor to hide it.

The philosopher Harry Frankfurt turned the everyday swear-word into a technical concept in his essay On Bullshit. His core claim: the defining feature of bullshit is not falsity but a lack of connection to truth. The bullshitter:

• misrepresents what they are up to — they pose as someone trying to describe reality, but aren't.
• has no interest in the truth-value of what they say — getting it right or wrong simply isn't the point.
• is not convinced their claims are correct (nor that they're false).
• bends reality to fit their own purpose, picking or inventing whatever suits the goal.

The classic example is the politician or the Fourth-of-July orator who speaks grandly about "our great and blessed nation": they don't care whether the audience forms true beliefs about history — they care how the audience sees them.

Tip: Bullshit can even be accidentally true. What makes it bullshit is the speaker's indifference, not the accuracy of the words.