Comments by "Kenneth Dean Miller" (@kennethdeanmiller7324) on "Type XXI - Guide 408" video.

I know 2 years may seem like a long time from asking & then FINALLY receiving. However, I'm sure that he "added it to the list." And by then he already had a VERY long list! But still very interesting submarines. If these types had been built during peace time & allowed time to fix any issues before war broke out, then a large quantity of these subs would have been a bitch to have to deal with. But given the advances in sub hunting and the Hedgehogs and all the different new types of depth charges & sonar. It may have only meant that an extra 2k or so German submarine sailors perish beneath the ocean waves. Although war in most ways advances different technologies rather rapidly, it also hampers certain advances as well. And while you can't really say whether it's a good thing or a bad thing, it just is what it is.
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@AdamMGTF Actually, with all that being said, it makes me wonder how long "the list" still is.
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