Lesson 5.3 — The Slippery OR

Presenting two options as if they're the only options. Also called the false dichotomy.

The Slip

In Lesson 1.2 (and again in 1.2's XOR Tricky Bit), we saw inclusive OR vs. exclusive OR. English blurs them. Sometimes that blur is used to pressure you into a choice.

"Look, either we cut taxes OR we lose all our jobs."

The speaker uses OR like XOR — like it's one-or-the-other-not-both. They want you to feel forced into a choice. But maybe both things can be true at once. Maybe neither is the right framing. The OR was the trick.

The False Dichotomy

This move has a name: false dichotomy (or "false dilemma"). The speaker presents two options as if they're the only options, forcing you to pick one.

"You're either for us or against us."

Maybe you're undecided. Maybe you agree on some things and disagree on others. Maybe the categories are wrong. The OR is fake.

"We can either build a new highway or accept that traffic will get worse."

Maybe we can build mass transit. Maybe we can encourage work-from-home. Maybe we can build a few smaller roads. Many options exist; the two-way OR collapsed them.

When OR Is Honest

OR is fine when there really ARE only two options.

"The light bulb is either on or off."

Two-state device. Honest OR.

"Either I passed the test or I failed it."

If there's no in-between grade, honest OR.

The test: are the options exhaustive (cover all possibilities) and mutually exclusive (can't both be true at once)? If yes, honest. If no, slippery.

How to Catch It

When you hear an OR statement that pressures you to pick a side, ask three questions:

1. Are these really the only two options?
2. Could BOTH be true at once?
3. Could NEITHER be true?

If any answer is yes, the OR is doing dishonest work. Real choices usually have more than two options.

Honest or Slippery?

For each statement, identify whether the OR is honest (exhaustive + mutually exclusive) or slippery (presenting a false choice).

Where You'll See It

Advertising, political rhetoric, and any high-pressure sales pitch love the false dichotomy. The mechanism: collapse the actual range of options into two, then pressure you to pick the one the speaker wants.

"Either you use our product or you'll fail."

"Either we cut government spending or the economy collapses."

"Either you support the war or you're unpatriotic."

The trick works on speed and emotion. Slow down. Look for the hidden options. The OR almost always has more than two sides.

Recap

• Slippery OR / False Dichotomy: presenting two options as if they're the only options.
• Real choices usually have more than two.
• Honest OR needs the options to be exhaustive AND mutually exclusive.
• Ask: are these really the only options? Could both be true? Could neither?