Looking at your repository, I find omni interesting as a protocol to bookmark all blockchains, I have a few questions

1. everyone can use the synchroniser, so how is the synchroniser incentivised, as it seems that proof submission requires gasfee

2. you mentioned that btc and evm including polkdot are synchronised at the same time, so I submit a transfer tx on btc and then I have to wait for 10 mins right, isn't that very inefficient of him then

3. also, i have doubts about its security as the sync seems to be run by everyone, so can i run a lot of sync and then do a double flower

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