What's a Mempool?

Bitcoin be like, “Which transaction is bae-worthy?” 💸

Bitcoin’s answer to this? Pure genius. 🤯

Here’s the tea… ☕

Every squad on the Bitcoin network spills the deets about new transactions. 💬

Those Bitcoin squad link-ups? They don’t directly make it onto the blockchain dance floor. Nope, they first wait in line at the “memory pool”. ✨

Every Bitcoin nerd's computer creates their own transient hangout spot for transactions known as the “memory pool,” aka the “mempool.” 🔥

Each Bitcoin homie's node has its mempool, where it vibes with a queue of transactions it’s verified and labeled Gucci.

Big picture: a mempool's like a VIP line where transactions chill before getting in the new block party. 🥳

• The memory pool is holding those “hot off the press” or unconfirmed transactions (solo tracks).
• The blockchain? It’s all about those “forever vibes” or confirmed transactions (all packaged in glamorous “blocks”).

All those bitcoin transactions? They’re just “unconfirmed” tea until they’re officially on the blockchain dance floor. 🕺💃

K, so in Bitcoin’s world, all full nodes got a memory pool.

Let’s say you’re kickin’ off a transaction from this side (stunning purple vibes). 💜

Then you skip over to here and try spending the same bitcoin by inserting the red transaction in another comp. ❤️

If you scope closely, those transactions ain’t hitting the blockchain book directly. Both are just vibing out in the memory pool of each comp for now. 💻

So both transactions are zooming through the network. 🌐🚀

This comp rejects the red vibe ‘cause they already got the purple one. No double-dipping here fam. 😅💜

So both vibes (transactions) stay on the network. 🚦

But the blockchain playlist isn’t updated yet. 🌈

Next, these comps will hustle to move their transactions from their mempool onto the blockchain. 👩‍💻

Computers gonna vibe check and add their transaction heat to the blockchain stage first. 🔥✨

Bet, this yellow team computer gets in the game first. 💛😎

It yoinks its transaction from the mempool and slides it to the blockchain:

And once that’s done…

It will spill the updated file tea to all its connections… 📄🔧

And they'll update their files too. ✍️📲

In the glow-up below, this node gets the fresh file tributing the purple transaction spending that Bitcoin. 💜💸

So, what's the vibe for that conflicting red transaction chillin’ in the mempool? 🤔

Since the same Bitcoin’s been spent by the purple transaction, it’ll give the boot to the red one from its hangout spot! ❤️🚫

This node will shout-out the updated file.

And the squad will follow suit, ditching any transactions causing drama in their mempools. 📢

So now, all the crew’s got the updated file. 📁✨

And that’s the cheat code for handling two conflicting transactions in Bitcoin land. 🎮

You literally have a “waiting room” (mempool) for these transactions, and nodes run a hustle to get them onto the blockchain. 🚀💥

And just like that, the purple dude's got the bitcoin...

But when ya shady self tries to spend those same coins with the red dude, it’s a flop.

This whole scene of nodes battling to move their transactions from the mempool to the blockchain is literal MINING. ⛏️🤑