Tremendous advantages of utilizing blockchain technologies;
Trustless; The need for trust is removed, the necessity of a “trusted third party” that acts as a transactional “clearing house” between parties is replaced by the database being distributed across thousand of nodes relaying the same data, the consensus (more than 51%) validates the data and its tx after multiples confirmations on the distributed database. Disables double spending with solving the byzantium problem and enables friction-less p2p mean of exchange worldwide.
Immutability; Once data is sent and distributed on the blockchain there is no turning back, the data is embedded into a block who is instantly stored across all nodes of the network making it irreversible and immutable. Only way to alter this data is a 51% attack and/or a hard fork.
Censorship resistant; See “trustless” and “immutability” section, I will add that with a brain wallet, for example, it is TRULY impossible to seize and/or control, without the owners permission.
Security; Anything happening on the blockchain is encrypted and it’s possible to prove that data is unaltered. Because of its distributed nature, achieved by different types of consensus algorithm, you can check data signatures across all the ledgers on all the nodes in the network and verify that they haven’t been changed. The linking between the hash of each block that is generated based on both the data contained within current block and the hash of the previous block, is a major factor contributing to the blockchain security and immutability.
Traceability; Everything on the blockchain is for everyone to see, making it the most transparent tech worldwide. It literally disables potential and future possible corruption-cases (Money laudering, political bribery, etc.), if everything is for everyone to see, most ill-intended actors will refrain from doing illegal and world-impacting actions.
Efficiency and Speed; Banks; 3-5 business days. Transferwise; 2-3 business days. Blockchain; Counted in seconds and/or minutes for p2p transactional completion.
Freedom of choice; It allows people to opt out the archaic deeply corrupted crony capitalist system that we live in today.