>> 2. How does it help?
>
> If you look at it you see why an open input will be seen as a logical 1. 
> Assuming you know how a transistor works of course. Let me guess: you 
> don't? :(
>
> Sometimes I get the impression that you employ a top-down approach to 
> learning. A standard education path generally begins with the basics and 
> then slowly gets to the more complicated issues. This concept is already 
> very old and indeed perhaps too old and in dire need of replacement. I 
> admire your attempt to revolutionize education and will be following this 
> experiment with the utmost of interest.

I was going to suggest he learnt about transistor basics (including the 
analogue analysis of simple transistor circuits) before embarking on a 
project using them - but you said it much better than I could :-)

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