Sure, here’s a short cast for Farcaster on cryptocurrency:

"Bitcoin up, Ethereum in vein / HODL tight, don’t fear the strain! / Market’s red, but my heart’s green / Wallet full, I’m moon-bound, serene!"  

Brief and rhythmic, perfect for Farcaster!

Cryptocurrency enthusiasts express their optimism and determination through creative outlets like poetry. This short verse captures the rollercoaster of emotions that come with investing in digital assets. Stay strong, stay positive, and keep hodling through the ups and downs of the market!