I have three related questions:
I myself can't see a better system than DPOS for BitAssets but maybe you can. Since you (BM) said on a mumble hangout two weeks ago that the Bitshares team is working on getting the fundamentals right (industrial grade blockchain technology, scaling etc.)...
1) Does the Bitshares team consider any changes to the consensus mechanism (DPOS at the moment)? Bitsaphire has suggested a few very interesting ideas in a mumble session about two weeks ago.
2) Do you see voter apathy as a problem? Voter apathy having two dimensions: a) Quantitative: amount of shares that votes. b) Quantitative: quality of shareholders decisions.
3) How fundamental is the consensus mechanism? How easy / difficult is it to replace it?
If this is better answered on the forum I can open a tread too...
Changes to the consensus system would be minor:
1) Separate block producers, Workers, Feed Producers, and Chain Management (fee setting, block size limits, etc)
2) Make the number of each category voted upon by the stakeholders.
You cannot vote for there to be more "delegates" than you are willing to specify, though you can vote for there to be less.
This will help scale the number of "delegates" to the actual ability/attention span of the community rather having more delegates than people can evaluate. This should reduce a vulnerability if 50% of all delegates are "not carefully considered". Better to have 30 highly vetted delegates than 100 minimally vetted delegates.
Consensus is easy to "replace" what is hard to replace is "trust" and "governance" which is what BTS has and no one else.