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Md Mijanur Molla
Md Mijanur Molla

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I Built a “Delivered but Not Received” System… And It Lied to Me 👻

You’ve seen this.

Message sent ✔️

Delivered ✔️

But the other person says…

👉 “I didn’t get your message.”

Now you’re confused.

Was it delivered or not?

So I turned this into a coding challenge.

And it exposed a real problem.


😂 The Problem

The logic looks simple:

  • Send message
  • Mark it as delivered
  • Later mark it as received

That’s it.

But real systems are not that reliable.


⚠️ What Goes Wrong?

In real-world apps:

• Message marked as delivered without actual confirmation

• Network delay causes incorrect status

• Receiver never actually gets the message

• System shows false success

And suddenly:

👉 System says “Delivered”

👉 Reality says “Not received” 😭


🧠 What I Observed

When thinking about this:

  • Basic systems assume delivery = success
  • No real acknowledgment from receiver
  • No retry mechanism
  • No verification step

The code works.

But the truth?

👉 It creates illusion.


🔍 The Real Issue

This is not just about ticks.

It’s about:

• Delivery guarantees

• System reliability

• Network uncertainty

• Trust in communication

Because:

👉 “Delivered” should mean actually delivered


💡 What a Better System Needs

A proper messaging system should:

  • Wait for receiver acknowledgment
  • Retry failed deliveries
  • Handle network failures
  • Confirm actual receipt

This ensures:

👉 No false delivery

👉 No confusion

👉 Better trust


🔥 Try My Challenge

I created this for fun (and reality check 😄).

👉 Try it here:
https://vibecodearena.ai/duel/b84ff69c-72fb-47ab-aa0d-f599218a2e19

Can you:

  • Fix false delivery status?
  • Ensure real message receipt?
  • Build a reliable messaging system?

🎯 Final Thought

Some systems show status.

Some systems show truth.

And this one…

👉 Sometimes shows illusion 👻


So tell me 👇

Was it really delivered… or just marked as delivered? 😭

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