Remember what has been going on with feathercoin for the past while, they've been attacked by a 51% attack, it forked their client and started orphaning everyone elses transactions.
What are the examples from other Cryptocurrencies do we have to observe real world effects?
You also seem to misunderstand that the Bitcoin network is HUNDREDS of times faster than the feathercoin network. I could fork any of these brand new altcoins if I jump on first.
Also, I don't think the shorter block time would be much of an issue anyways. I may not understand false transactions and double spends entirely, but wouldn't faster blocks make it HARDER for someone to double spend? The following statement is made with the assumption that the attacker does not have 51% of hashpower. If someone wanted to double spend, wouldnt they need to attack each and every block until the confirmations accepted by the seller are there?
Can someone who thinks they have an adequate understanding of how the entire confirmation system works with security explain how it works? I feel as though some people here are slightly misguided.
I also don't think the value of time is directly related to security. NOTE: I may not understand confirmations correctly. However, a 10 minute block's 1 confirmation compared to needing 10 1 minute block confirmations isn't correct. The correlation here is just time. 10 minutes goes by in each block time example. If time is how some of you are describing security, I doubt that is correct. I think 1 confirmation in a 10 minute block is as secure as 1 confirmation in a 5 minute block. However, I still need to understand how confirmation security really works.