[6nf]

> Block size doubling and cutting transaction sizes in half each double the throughput.

You can only cut transaction sizes in half once, but you can always double the block size again. Let's just double the block size?

[jcoffland]

SegWit does not cut block sizes in half it moves some data out of the main block and in to the SegWit block. Full nodes will need more disk space per transaction with SegWit not less.