Latency is the time it takes for data to be sent from one computer to another. What's so hard to understand about that? The biggest factor contributing to latency is distance. Compare the size of Japan to the States. Factor in the fact you will be playing people from Europe, Japan, Australia, just to name a few, your latency increases. You then experience lag, the symptom of high latency. The fact you question me when you use terms like "100ms lag" is humorous to me. This would mean that no data was being sent for a tenth of a second. Completely different.
And by the way, I wouldn't consider 50 Mbit/sec ADSL to be "above average" for Japan. WAIT WHAT IS THAT?! DSL HAVING 50Mb a second data transfer?! You mean that technology that's very reliant on distance?! Where most consumers in the United States do not have access to if they are past 18,000 feet from the CO of the provider?! And given the fact that they have such high data transfer rates on a technology that is reliant on distance, do you think being in close proximity could only mean LOWER LATENCY, resulting in LESS LAG!? WOW!
Just examine a Halo 3 replay film. You can spot network code compensating for latency easily there.
DJ Yoshi, I have played enough of Super Smash Bros. to the point where the slighest delay could completely mess me up. I am extremely good, my friends and I have logged THOUSANDS of hours into the game. I have also played enough console games to know that they generally do not have the network performance you come to expect out of PC games. Most PC games have dedicated servers, do they not? There are none in console games, it is all P2P. In an ideal situation, yes it may be tolerable (probably not to my liking, however), but you are going to be playing folk all the way accross the country, people who have Limewire downloading in the background, etc. Which is going to ruin the gameplay. It happens all of the time on Xbox Live, why would it be any different in Brawl. By the way, I corrected you, you were wrong. You can play with people that aren't your friends. I guess my initial assumption that you had no idea what you were talking was correct. Anyone that's been following Brawl would know this.
Fighting games take a lot of data. A lot of them are only enjoyable under optimal conditions. Anyone that has played any fighting game on a console online knows this. VF5 did it best, but even it had it's fair share of problems.
You are aware that there are concerns floating around that you can only have two Wii's connected to one another over the internet to play Brawl, as a result of latency gameplay concerns, correct? I assume, no. So read this thread (
http://forums.modojo.com/showthread.php?t=153497) over at another forum I visit. By the way, a lot of those members actually know what they're talking about when it comes to video games, and a lot of them agree with what I have said, and a lot of their statements contradict your whole "fighting games don't take that much data being sent" crap.