While NIMIQ is most known for its browser-based blockchain, it’s a healthy reminder that few important members of the group that created the Internet have the master keys to shut it down. In this case, we should have alternative ways to transact Nimiq through offline means such as radio waves, mesh networks, ad hocs, bluetooth and any form of communication device that internet has little or no involvement in. Transactions through com units is another way.
I don’t know if cold wallets like Ledger can do offline transactions but if it can, other ways should be considered too. Appreciated.