function Write-HostSimType ($output){
    $array = $output.ToCharArray()
    foreach ($l in $array){
        $delay = 30
        if (@(",",".","?","!",":",";") -Contains $l){
            $delay = 300
        } elseif ($l -Match "`b" ){
            $l = "`b `b"
        }
        Write-Host -NoNewLine $l
        Start-Sleep -Milliseconds $delay
    }
    Write-Host ""
}

function New-BackspaceLn ($in){
    $bs = "`b" * $in.Length
    return "$in$bs"
}

$initial = New-BackspaceLn "Greetings commander, let's make this quick."
Write-HostSimType "$($initial)But first, how are you doing?"