ScienceStudioYT

You can check the stats of any channel using a free site, SocialBlade. https://socialblade.com/youtube/channel/UCmbkRUS_4Efdt5UIhwNqtcw/monthly

I didn't gain much traction until about a year into it. Once I started pushing content on a regular basis, we went from 300-400 subscribers to 200k in 12 months.

Get started. IT has little to no barriers to entry. Start learning, start experimenting. Almost anything you want to know can be found on YouTube/Google.

I prefer edible food.

Stinky tofu in Taiwan. I had this recently on my trip to Taiwan. They sell it at malls and on the streets like hotdogs are sold on the streets of NYC. It lives up to its name, and the taste isn't much better.

400 hours of videos are uploaded to YouTube every minute. That's an insane amount of content! If you can pick a niche that you're very knowledgeable about, such as tech, there is still room for new creators! If you were to ask about Lifestyle Vloggers, I'm not sure what the opportunities are as I'm not currently in that space.