...

- Alts work like a testnet for bitcoins (looking forward seeing Litecoin with SegWit)

- Once an alt feature looks working it might get adopted no matter onchain or in a side chain. (RSK)

- Alts mostly need bitcoin to trade and some bitcoins might be always reserved / locked for this.

- Alts might help to generate a closed bitcoin economy

My favorit comes here:

- Alts work like an infinite fear generator (Hydra) against any try of regulators to bring bitcoin down, since there are too many to kill and its very easy to just create a new one (like a Hydra cannot be killed by chopping off some heads, even the biggest one!) > crypto world is anti fragile and it will stay on this solar system from year 2009 on.


Any other things missing here?