I think Cuba is still far from the world of technology. they are still have trouble for accessing the internet.

Cuba , as a country at macro scale , yes . Cubans as individuals , no . Gray areas ...

Some recent facts :

3G launched recently
Tests for 4G are ongoing
There is a new policy regulating mesh networks , formerly illegal
Infrastructure deployed (mainly) by Huawei
The President is graduated from Electronics Engineering at UCLV , best university in the country for telecomm / informatics (IMO)
Cuba is located in one of the regions with highest density of oceanic fiber cables
Russia and China (intl partners of Cuba) are developing their own independent intl. financial services, some powered by blockchain
there are numbers of young people, completely organized communities, who are catching up very quicky
... more ...