Ask HN: Trump Tax Plan Effect on Sole Proprietors / 1099

Under the new tax plan, I was reading that there will be a 20% deduction on net income for "pass through entities". As freelancers/contractors who are paid for app development services, does that mean we get a big tax break? For instance, does a Sole Proprietor (pass through entity) who uses their SSN and is a 1099 contractor that nets 100K/year now only need to pay taxes on 80K?

Source: https://mic.com/articles/186972/the-gop-tax-bill-could-create-a-nation-of-freelancers