"Anyone can become muscular if they just work hard enough" sounds to me a lot like "anyone can become fat if they just eat enough."

Both of those seem pretty plausible to me, even though admittedly it is harder for some than for others, in both cases.

The gym is not nearly as powerful as the technology I'm talking about.

I see that you are new on LW. LW is a place that's about actually thinking critically and not simply talk about magic pill interventions. The gym does what you were talking about. It might not have been what you where thinking about.

Men given the genetic short end of the stick can't reasonably expect to look fit no matter how much they work out, unless they don't have a job or any time consuming responsibilities.

What makes you believe that's true? Leaving out people with real disabilities for the sake of the discussion.

We have that technology. It's called "The Gym". People who are already muscular gain less additional attractiveness from it.

First, I would like to suggest that "using technology to upgrade every man's body" is available right now. People usually call it "going to the gym".

As to whether I need a better imagination, let me quote you Eric Hoffer: When people are free to do as they please, they usually imitate each other.

"The other girl is a Brandy. Her date is a Clint. Brandy and Clint are both popular, off-the-shelf models. When white.trash high school girls are going on a date in the Metaverse, they invariably run down to the computer-games section of the local Wal-Mart and buy a copy of Brandy. The user can select three breast sizes: improbable, impossible, and ludicrous. Brandy has a limited repertoire of facial expressions: cute and pouty; cute and sultry; perky and interested; smiling and receptive; cute and spacy ... Clint is just the male counterpart of Brandy. He is craggy and handsome and has an extremely limited range of facial expressions." -- Neal Stephenson, Snowcrash

I largely agree, but:

Thought: Something we could do to make the world a better place is to use technology to upgrade every man's body. Make most men taller, more muscular, leaner, etc. Men who currently have relatively less attractive bodies will get a larger upgrade than men who have relatively more attractive bodies to make it fair. But make sure there is still variety in what men's bodies look like.

You don't even need that much technology -- part of the reason why the average man is less attractive to the average woman than vice versa is that the former isn't even trying.

And I don't think either gender would be uncomfortable with that scenario.

Given the backlash against PUA I wouldn't be entirely sure of that, even though improving appearance might be less taboo than improving behavior.

Thought: Something we could do (eventually) to make the world a better place is to use technology to upgrade every man's body. Make most men taller, more muscular, leaner, etc. Men who currently have relatively less attractive bodies will get a larger upgrade than men who have relatively more attractive bodies to make it fair. But make sure there is still variety in what men's bodies look like.

Do this until the average man is as sexually attractive to the average women as the average woman is to the average man. That would solve a lot of problems. And I don't think either gender would be uncomfortable with that scenario.

Edit: We could also upgrade things like smell and voice timbre.

Edit2: The gym is not nearly as powerful as the technology I'm talking about. I'm talking about some kind of biotechnology or transhuman technology

Reversed Stupidity Is Not Intelligence.

Slightly more than 5 words:

The facts don't know whose side their on.

Every cause wants to be a cult.

No, I don't think so. Perpetual motion machines are not "impossible" because we simply do not know how to create them; in fact we know that they are impossible because they would violate the laws of thermodynamics.

Can this article be used to defend to idea that one day we may do things we currently believe are "physically impossible" such as build perpetual motion machines or alter physical constants?