Ok you hash a fixed 16 bit input with sha256 and ill find it in a second

Didn't this happen with gold?

So if I understand correctly bitcoin performs a hash on a 256 bit ecdsa public key, do you still have a 256 bit protection when the input is not 512 bit? Isnt the compression function security based on compressing 2 to 1?

In the transactions i think it said something about blocks remaining and not the usual send arrow.

Its already a few days ago bitcoin are still in my address according to online explorers. reconnected to internet and no outgoing transactions so I guess im safe and let it catch up with the blockchain.

I tried sending bitcoins when not fully synced but it didnt seem to broadcast? I closed bitcoin-qt and removed the transaction with zapwallettxes. What happened? i still have the bitcoins?