Wow, what a question. Do i really know the answer ? Let us look at the Bible.
One of the stories of the Bible is the story of Noah. Noah was warned of God's judgment, so Noah was told to build the ark. Did other people knew ? Yes they soon knew and saw that Noah was building the ark. Did they believe Noah ? their actions showed they did not. Did God stopped talking ? God was talking to them through Noah. As long as Noah was building the ark, the message still stand. God gave men during that time more than enough time to repent. God did not cease warning, it is just men quit listening.
How about today ? Does God still talk ? Yes God still talk through many ways , through His creation, through the Bible, through the church,through the cross,etc.
Did God stopped talking ? or we just stopped listening ?