Could you correct me if they are wrong?

0Here are my interpretations. Could you correct me if they are wrong? Thank you.02br
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01b001.This was the early history of radio. The parallels with dot-com frenzy are eerie. (In fact, the broadcaster RCA used WWW, for world wide wireless, as it's logo.) And the party was just as short:Broadcast companies struggled to turn a profit, stock prices plummeted.02b02br
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00"The parallels" refers to those are similar to dot-com frenzy.02br
00"dot-com frenzy" refers to a mania or a frenzy for dot-com. 02br
00"dot-com" here refers to a Dot-com company ，which is a company which does most of its business on the Internet.02br
00"the party " is figuratively used to refer to "a golden period of time for Broadcast companies to develop"02br
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01b002.All the signs are that life cycle of the internet will continue to parallel that of broadcasting02b00.02br
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00"to parallel" here means " to be similar to sth else"02br
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01b003.For starters, there's the network effect. Just as early television networks got a leg up by approaching advertisers and building a base audience in the 1960s and 1970s, companies that get their metaverses up and running early will poach a lot of custmers from rivals and leave metaverses for another day02b00.02br
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00"early television networks got a leg up by approaching advertisers and building a base audience in the 1960s and 1970s" means "early television networks gave themselves a help or an advantage by approaching advertisers and building a base audience in the 1960s and 1970s".02br
00"to get a leg up" means " to give sb a help".02br
00"metaverse" means a fictional virtual world. And how it is used figuratively here? Can you put more understandable " get their metaverses up" and " leave metaverses for another day"02br
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01b004.We already see important issues emerging around security, network reliability, property legislation and taxation. Down the 02b02br
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01b00road, questions of infrastructure, software standards, competibility between potentially competing metaverses may also dog 02b02br
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01b00regulators, who will have the additional difficulty of coping with these matters on a global scale.02b02br
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00"Down the road" means "in the future time" or " as a particular something proceeds in that way ".0-