Among those voting for only 4 million shares, can someone please explain your reasoning? What's the advantage in having so few shares? Frankly, I can't see any advantage, but would like to know your pov. 
People associate higher prices with success. Having less shares equals higher prices which can generate more media attention.
The reason to have a lot of shares at a low price is if you want more volume on a chain. There is a balance but because there can be many chains I don't see a reason to go with 1 billion shares. Something between 4 and 8 million shares makes sense because by the time it starts to get too expensive for most people there will be multiple chains anyway.
So it's really about how you want to be perceived and the potential for market cap. If we think the market cap could be in the trillions then having 100 billion or even 1 trillion shares would make sense. But I doubt any single chain would reach that point and the result is the shares will likely look like a penny stock and be laughed at by people with significant resources.
Honestly for something like this there is room for experimentation. Whatever the community decides for one chain can be changed up in future chains if the market doesn't respond well.
According to 3i statements, ags and pts investers will get 50/50 shares to bts x chain with no dilution . Any change need to get consensus from our community
First chain is 50/50 with no dilution. Afterwards, you should expect to see many chains with different dilution strategies.
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What do you mean by future chains? a other DAC besides BTS X or you mean the future chains of BTS X?
I don't care about exact total numbers, but dilution is not fair for early investers (which is us) as this is not in the open statement when we bought PTS/donate AGS before 228.
I don't agree with the dilution strategy either. It should have been done the Mastercoin way where a certain percentage of shares was set aside from the start for development. Dilution alters all of our calculations which we made from the birth of AGS.
But at least we get the main BTS X chain which means we will be safe from dilution in that chain. If the other chains catch on or not is not as big of a concern because if the first chain has to be proven.