While I see your point about FulGaz providing a decent approximation of real-world climbing, I can't help but feel that it falls short in capturing the full experience. Sure, it might simulate the gradient and resistance, but what about the exhilaration of the descent, or the feeling of the wind in your face as you push yourself to the limit?
And let's not forget about the social aspect of cycling. Riding with others, sharing stories and pushing each other to be better is a huge part of what makes cycling so great. Virtual training simply can't replicate that sense of camaraderie and connection.
As for the mental strain, I completely agree that it's subjective. But in my experience, nothing beats the adrenaline rush of tackling a real hill, with all its unpredictability and challenges. It's a feeling that can't be replicated on a screen.
Now, don't get me wrong, I'm not saying that virtual training has no place in a cyclist's routine. It can be a useful tool for structured training and for those times when getting outside just isn't an option. But at the end of the day, there's no substitute for the real thing.
So, if you're serious about improving your climbing and taking your cycling to the next level, I'd encourage you to ditch the screens and hit the hills. The experience, and the gains, will be well worth it.