The best lecture is one that you prepare yourself,
out of documentaries, internet videos, audio books, info-graphics and visualizations.
Sometimes you get some hands on experience,
like a Raspberry PI Kit, with a bread board and a bunch of sensors to learn UNIX and soldering, for example.
Other times, it turns out that all your materials fit in a backpack, or a day-pack,
so you add a loaf of bread, some trail mix and water, and you are off.
Studying Astrophysics with all the greats as you hike to your camp site,
where upon your arrival you set up camp on top of ancient dune and wait for the stars to come out.
Rather than returning to the spot where you fell asleep,
it is always better to just get to the end and keep re-listening the whole thing, until you can remember everything, and actually need a new audio book.
Your own lectures, are much more authentic than anything a Professor can regurgitate out,
real lectures don't end after 12 classes, they last a lifetime, and when you return to the same books, it is such a pleasure.
The best advice I could give on the subject of lectures, is described with a single word:
Even if you are getting into circuit design or electronics, all you need to do is get some solar powered gear and a butane soldering iron,
then wire up a solar powered wireless network in a weather proof enclosure out the deepest part of the woods, and name it The Facility.
Reply to all HTTP requests with a creative login page,
what better way to learn UNIX then to have outrageous fun with it.
Might as well learn a programming language while you're at it,
how about creating a simple MUD with some snappy and convincing bots: "Ballerina Dentata entered the chat, and started following you."
It should a rule that we take our education onto the Nature Trails,
or places that challenge you, even if all they challenge you with, is fun and useless foolishness.
It won't take long before adventures become expeditions,
detecting supernovae from some mountain peak, tracking melting glaciers and climate data, or even reliably counting lighting bugs.
In school we tend to wait for a lecture to come to a resolution,
but in real life, a lecture is allowed to become its true self, it becomes a breathtaking gateway to explore and conquer the unknown.