Why Nostr? What is Njump?

Public Key
npub18uau5ejnw29yparsq9ns49hgujcqyarj5256kzzfltv0flpy3qaqlw97v4
NIP-05 Address
augmentedryan@nostrplebs.com
NIP-57 Address
augmentedsats@getalby.com
Profile Code
nprofile1qqsr7w72vefh9zjq73cqzec2jm5wfvqzw3e292dtppyl4k85lsjgswst8c47y
Author Public Key
npub18uau5ejnw29yparsq9ns49hgujcqyarj5256kzzfltv0flpy3qaqlw97v4