Let decrease block interval to 2s,but only increase 8M total block size.

[BTSdac]

if we decrease block interval , it would decease confirm time, but it would increase block size, become each block is 188B size at least.
I `d like to introduce a block-chain model to decrease block interval  but never increase block size so much.
1.there is a buffer -chain parallel with main chain. the buffer chain include all TX as normal block-chain.
2.this buffer-chain only keep 1 day , it mean buffer chain 1 days ago would been discard.
3.block interval of buffer -chain is b1 second that is less than main-chain m1 second
4.as follow picture show head of each block in main chain have to include the previous block hash in main chain , also include the recently block in buffer chain, set m1/b1=integer,
5.include all translation in blocks in buffer-chain that between block in main -chain. , so all TX have been included in main-chain ,the we can discard the buffer chain now ,