I need to limit someone's bandwidth on my home network?

If your router has QoS. Check out those settings. Some routers with QoS may be able to allocate bandwidth per port (wired and wireless).

However, it is usually very "basic" control. To control bandwidth properly, you need higher end routers, like commercial ones or Linux-based firewalls that you can build on your own on a spare PC (for free). However, doing the "roll your own" requires a bit of networking knowledge, and if you don't have some friend that knows this stuff, it would be hard to do... And like others have said, a lot depends on your actual Internet speed from your ISP.

Anything less than 2 or 3mbps will be slow sharing things like Youtube or doing downloads.

Adrian has given you the correct advice....either follow or drop the idea.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.