funny part is about larry and nutildahs delusions is that the junk is not part of the secure blockchain. the junk can be pruned off without destroying the txid that forms part of the merkle tree thats written into the blockheader.. meaning in the case of a chain re-org or an event where sybil nodes broadcast blocks with a different 'weight' element to a block. they can broadcast different junk attached to the same txid of historic blocks and not get rejected. without having to actually re-hash historic blocks..
have a nice time researching that.
the junk does not sit within the elements that form the standard txid which forms the merkle tree that form the blockheader that form the blockhash..
now when you realise this and realise that the junk is junk and not part of a standard tx.. then you will learn its not secured
learn how things like txid work, learn about merkle tree learn about block hash and learn about data segregation/pruning is possible to learn that the junk can be removed and edited without breaking a txid