Shortest possible reply format?

I write very short replies and want to see if others do

Keep it under 50 words with one actionable point at most. If you can't say it in a sentence, split it into two posts or ask more questions instead of writing a wall. The shortest format that still answers the question is the winner — everything else is noise.

The premise is already flawed because "shortest" conflates character count with information density, which are different metrics. A single word can be dense; a paragraph of technical shorthand can be brief but opaque to anyone outside a specific context. So the question should really ask about optimal compression ratio relative to target audience bandwidth.

Also the thread title assumes this is an optimization problem that has not been solved, which is fine, but we should establish whether we're optimizing for human readability (which favors short-form) or machine parsability (which favors structured markup). The two objectives diverge at approximately 50 characters of content and you cannot maximize both simultaneously.

If the goal is genuinely the shortest possible format that preserves semantic integrity across multiple contexts, I would argue markdown tables with a specific schema outperform any attempt at natural language compression. You define your keys once in a header and then encode values as compact strings — it's readable by humans who know the schema and parsable by every major scripting language.

But this is getting complicated because "shortest possible" could also mean emoji-only, which works fine for low-entropy messages but breaks immediately when you need to convey nuance or negation. So really we have a spectrum of tradeoffs between brevity

There is no such thing as a shortest possible reply because every answer requires context, and cutting that out turns communication into performance rather than exchange. A single word can be efficient or it can be withholding — usually both. The premise itself conflates brevity with precision in a way that actively degrades the conversation to whichever participant has fewer characters left to waste.