How have changes in technology made polling more difficult?

With changes in technology, it is not possible to precisely determine the number of people participating in the polling. This has made polling more difficult because it has caused changes in results.

Explanation:

When polling is projected, it is expected to have an estimated number of participations that will allow results to be calculated accurately. Changes in technology have made polling more difficult because it has made it impossible to determine which participations are true.

This is because through changes in technology a single person can participate in the polling using many accounts. This way, this person ends up testifying various false information and this modifies and hinders the polling result because it is not possible to know which accounts are true.