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Perhaps a summary after the bike ride could be good. No doubt you'll get some inspiration during the ride and perhaps some incite and, if it's good, I'll read it.
However, I doubt I'd enjoy any ramblings during the ride where you're both tired and haven't spent any time researching an idea that popped into your head. In other words -- don't write the un-researched, off the top of your biased head, kind of posts that you disparage in others.
Have fun though.