This is another attempt at helping my previously mentioned time traveler to distribute a significant amount of 2020 knowledge in 1990. This time we're assuming 2-3 loops have happened and he can carry back a little more technology to 1990.
The time traveler will have a small specially made device, think something like a Raspberry Pi + monitor and possibly ports to interface with 1990 tech. On it he has stored gigs worth of information & knowledge from the future which he wishes to share with 1990 to uplift their technology. He wishes to maintain his own anonymity while doing so.
He is looking at a simpler solution than previously mentioned and sticking his uplift-tech device, along with a per-printed (in the future) note, into a box and anonymously mailing it to a trustworthy influential individual (or group) that can be trusted to ensure distributing the information to the world.
He only has one of these devices at first to mail, thus he must be very careful to pick a recipient who is trustworthy and in a position to distribute the information. Luckily he can research historical figures in 2020 to try to find the perfect candidate to trust with such an important payload before he goes back.
He has two primary concerns when picking the recipient. First is his desire to ensure this information is distributed to everyone equally. He doesn't want a single country or organization to hog the information and utilize it to become a superpower, he wants all of the world to benefit equally from the knowledge.
Keep in mind this doesn't just mean he needs to trust the recipient to not steal the knowledge, our protagonist needs to trust the recipient has the means to prevent his government, or other groups in power, from strong arming the recipient into handing over the payload once they learn of it's existence. This means the recipient needs to either have significant amount of power and influence, or have a means to ensure the information is stealthy shared and replicated to numerous sources before making it's existence public knowledge.
The second concern closely influences the first, and that is the massive quantity of data to be distributed. The payload will have potentially many gigs worth of data, since he's trying to share 30 years of worlds knowledge. 1990 technical infrastructure will struggle both with having bandwidth to efficiently distribute so much information and the storage to store, and duplicate, it. This will make it difficult for the recipient of the payload to easily distribute, and duplicate, the information across the world in a timely manner. Until the recipient has ensured the data is replicated in numerous locations the payload itself becomes a tempting McGuffin that people, and governments, will want to take and control for the potential power it's information can provide.
Given these constraints who, if anyone, can be entrusted to ensure the information is properly disseminated across the world; and what instructions should the time traveler include with the payload to help the recipient to have the best chance of succeeding at this attempt?