The big bang, to see how it all started.
The video format is made for the device format where most people consume it. It’s just as annoying when someone clips a widescreen formatted video on TikTok. The ability to learn from something isn’t affected by the video being horizontal or vertical.
Have you used TikTok? How long do you think videos can last? Because they can be up to 10 minutes; plenty of time for quality content. Not to mention, many longer videos are broken into multiple smaller parts (similar to tweet threads).
To your specific point, there are some excellent WWII scholars producing TikTok content on topics such as countering Holocaust denialism.
Beyond that, there are many things people can learn more efficiently outside of long-form content. Recipes are a great example: search engine algorithms have made recipe websites a complete disaster. Literally no one wants to read (or write) about my step grand uncles 3rd cousins summer cabin, but SEO demands bloat. In a short form video, there’s not as much time for algorthmically mandated filler.
People said the exact same thing about YouTube, and people’s desires for fame. The world still turns.
All to say, like all social platforms, on TikTok there are good and bad, people of all shapes and sizes. Rest assured, people are learning on TikTok, (and YouTube, and Facebook). Yeah there’s misinformation, just like every other corner of the Internet.
My daughter’s first word was her own name. 5 years later, my son’s first word was… my daughter’s first name.