In fact, it could be named "satoshi-Tx" (satoshi for transfers LOL) and have the exact value of a satoshi, with his own chain.
But I guess that would be complicated to.
This seems somewhat reasonable...
Hell.. it doesn't exactly need to be tied to bitcoin...
But... Bitcoin would be the base for large/non time sensitive transactions; and an alt would be for the smaller quicker needs. not rocket science, and it doesn't need to be elaborated ANY further than this concept.
This wouldnt change volatility; nor is it intended to.
This wouldnt fork BTC, nor is it intended to.
There are TONS of Altcoins out there to pick from.... We just need to figure out what works for what type of scenario. (day to day groceries, small instant on-the-street-peer-to-peer transactions (flea market, food vendor, gambling sites, etc).
People act like waiting 10-60 min for a block to confirm a transaction is haneous... but honestly; its fine.
The block size, well; We need to discourage people from making a million small transactions to fill up the blocks.... That would be the only way that BTC itself would need to change in order to be sure the altcoin takes over the smaller stuff. Maybe something as simple as scaling network fees based upon transaction spacing. Obviously something would need to be done about the exchanges.... or exchanges will have an inflated TX fee. So this idea isn't as good as others...
I think a larger block size will over inflate the blockchain and cause some future problems.... I wont put my finger on it just yet; but that's my opinion.....
And Im not claiming to be an expert; but... if you can spoon feed people the concept that altcoins Vs. BTC will just be like the comparison between a dollar bill and a paycheck likewise.... they might understand.
You don't need to wait a confirmation.
As today, double spends are really rare(doesn't mean extinct, but still rare), so accepting a payment by just seeing that the transaction was broadcasted is enough, specially to the difficulty in doing one, so you would wait a confirmation(a few confirmations) for only big transactions.
Using another coin just for the sake of not bloating the Bitcoin chain is pure bs.
You would need to rely on services and not to trust the software to exchange between BTC <-> Alt, and our wallets would need to read 2 blockchains, creating 2 networks.
Just, stop saying that this is a good idea people. If alts are good idea there won't be so many that don't worth a penny out there.
The only alts that I liked was NameCoin and Litecoin for trying something new, and SunnyKing creating PPC and Prime, he tried things completely different.