It will cost alot to make a demo, it's not a simple website or android apps anyone can make

I watched with difficulty until the end of one video about aging. Why is it so boring, like a conference or some kind of lecture. For investors, it would be necessary to make video of smaller length and more attractive. And then when too much white paper filled with scientific articles, videos for professors, then it starts to worry, as it begins to seem that this is deceiving people by pseudoscientific. Really famous scientists bring their thoughts in a simple form. For example, Stephen Hawking in his popular books.

As for why Vitaliks donation might be important, Vitalik has so many followers on Twitter and is the most famous guy in Crypto. So him donating to a project like that puts similar and related projects on the radar of his followers as well.

EHF has no direct connection with SENS due to different products (IT-platform vs. anti-aging drugs and longevity studies).
Aubrey is an Advisor of EHF.

It is because SEnS received a bunch of donation from Vitalik Buterin if I am not mistakenly read. And some people want to know if there is a connection between ehealth and sens.

It looks like videos have been designed for another scientifics but normal investors are overwhelmed by so much information. I agree in that they need to make more simple promotional videos.

But its true that the videos are less attractive for common people.
Maybe it would be good if they hire a good video producer/maker or someone who can make the video more attractive.

Their latest videos are already quite short, only a couple of minutes and they address question that came up in this thread. I think it's a good way to interact with the community but more purely marketing related videos would be beneficial as well of course.

I admire EHF vision to enrich human lives and I seldom see projects like this that give utmost value to humanity by integrating different kinds of technology in order to achieve its goal.