[Bitcoin-development] Protocol extensions

[Jorge Timón]

2011/12/17, theymos <theymos at mm.st>:
> My preferred solution for handling scalability in the future is to
> have lightweight clients download only headers and Merkle trees (which
> are both small and easy to distribute), and then require senders to
> contact recipients directly in order to transmit their transactions.
> Then lightweight clients never need full blocks to build their
> balances, and full nodes don't have to handle expensive queries from
> lightweight clients.

This idea is really interesting. Is there any drawback I don't see?