When you say "commissions" do you mean Eth Gas?

yes, the fucking and evil fees.

dunno how someone will connect all the chains money and make it make sense and still be easy enough to use that you don't need a technical engineering degree with a masters in finance to use it.

I think this sums up the whole problem, what if a universal blockchain were invented, where all the coins could survive, something like what they do in publish0x where they give you tips with different tokens? Of course, the technical aspect that you mention is a difficulty, but I think we are not far from reaching a metaverse where you can access and easily pay with any crypto you have. It would be something like having a bridge that would be in charge of creating anonymous, single-use wallets that were intended only to carry out that operation. Of course this would require a lot of code, but a proposal for a universal blockchain that would cover all the others (hive, btc, eth, solana, bch, matic, etc.) would be interesting.