catapult launch dont have to be slowed down because of this
u can start without working bridge and manual move the first coins via burn on nis chain
only downside this coins will never be able move back
but still to claim 1 XEM burned on nis is 1 XEM created on catapult is doable this way in manual mode without full setup supernode powered bridge protocol stack in operation
the main concern people have is tax relevant events and value invested in each single xem they own dont move 1:1 towards catapult
a 2 chain 1 coin approach would solve that both because there is only once coin with same value and it doesnt matter if u buy an xem on a exchange who still only interact with nis and accept deposits on a pure nis node or if u buy a xem on an exchange who only interact with a catapult node. if its clear that in both chain together is the hard limit of 9 million coins and they can free move between chain then its clear 1 xem is 1 xem and there is no fear of catapult needed to devalue ur hard earned XEM u own. also there would be no timewindows that u can miss for swap/conversion/migration because in fact no migration is needed we can use services on both chains and i expect that wallets after some brain invested will soon be able show ur value on both chains and in background move xem between chains as needed so in fact its visible as one solution
see it as a mini sharding with 2 shards
and once we have this technology nothing stop us from launch more shards and we have a additional scaling layer.
add chains as needed maybe even chains specialized for different purpose but bridge connect them and make sure all chains powerd by the same XEM currency
this i would call added value for XEM owners